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10012222220 = 22571113500111
BaseRepresentation
bin10010101001100011…
…00110001100001100
3221211202202120212012
421110301212030030
5131001112102340
64333300400352
7503053325150
oct112461461414
927752676765
1010012222220
114278702820
121b350a60b8
13c373a9660
146ada25060
153d8ec4565
hex254c6630c

10012222220 has 96 divisors (see below), whose sum is σ = 28230322176. Its totient is φ = 2880633600.

The previous prime is 10012222219. The next prime is 10012222229. The reversal of 10012222220 is 2222221001.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 10012222195 and 10012222204.

It is not an unprimeable number, because it can be changed into a prime (10012222229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 230036 + ... + 270075.

It is an arithmetic number, because the mean of its divisors is an integer number (294065856).

Almost surely, 210012222220 is an apocalyptic number.

10012222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10012222220 is an abundant number, since it is smaller than the sum of its proper divisors (18218099956).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10012222220 is a wasteful number, since it uses less digits than its factorization.

10012222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500151 (or 500149 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 10012222220 its reverse (2222221001), we get a palindrome (12234443221).

It can be divided in two parts, 10012 and 222220, that added together give a palindrome (232232).

The spelling of 10012222220 in words is "ten billion, twelve million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 11 13 14 20 22 26 28 35 44 52 55 65 70 77 91 110 130 140 143 154 182 220 260 286 308 364 385 455 572 715 770 910 1001 1430 1540 1820 2002 2860 4004 5005 10010 20020 500111 1000222 2000444 2500555 3500777 5001110 5501221 6501443 7001554 10002220 11002442 13002886 14003108 17503885 22004884 26005772 27506105 32507215 35007770 38508547 45510101 55012210 65014430 70015540 71515873 77017094 91020202 110024420 130028860 143031746 154034188 182040404 192542735 227550505 286063492 357579365 385085470 455101010 500611111 715158730 770170940 910202020 1001222222 1430317460 2002444444 2503055555 5006111110 10012222220