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10222012020 = 22351115487897
BaseRepresentation
bin10011000010100011…
…11000011001110100
3222101101112000100210
421201101320121310
5131413313341040
64410153105420
7511211445213
oct114121703164
928341460323
1010222012020
114376071a20
121b933b8270
13c6b9b092c
146cd83507a
153ec614480
hex261478674

10222012020 has 48 divisors (see below), whose sum is σ = 31223602368. Its totient is φ = 2478063360.

The previous prime is 10222012007. The next prime is 10222012039. The reversal of 10222012020 is 2021022201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10222011987 and 10222012005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7743289 + ... + 7744608.

It is an arithmetic number, because the mean of its divisors is an integer number (650491716).

Almost surely, 210222012020 is an apocalyptic number.

10222012020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10222012020 is an abundant number, since it is smaller than the sum of its proper divisors (21001590348).

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

10222012020 is a wasteful number, since it uses less digits than its factorization.

10222012020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15487920 (or 15487918 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 10222012020 its reverse (2021022201), we get a palindrome (12243034221).

The spelling of 10222012020 in words is "ten billion, two hundred twenty-two million, twelve thousand, twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 15487897 30975794 46463691 61951588 77439485 92927382 154878970 170366867 185854764 232318455 309757940 340733734 464636910 511100601 681467468 851834335 929273820 1022201202 1703668670 2044402404 2555503005 3407337340 5111006010 10222012020