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10022211220 = 225774339631
BaseRepresentation
bin10010101010101111…
…01100111010010100
3221212110120002012011
421111113230322110
5131011141224340
64334254434004
7503234250460
oct112527547224
927773502164
1010022211220
11428330569a
121b38502904
13c394961c8
146b10a54a0
153d9ce90ea
hex2555ece94

10022211220 has 48 divisors (see below), whose sum is σ = 24059040768. Its totient is φ = 3435367680.

The previous prime is 10022211217. The next prime is 10022211289. The reversal of 10022211220 is 2211222001.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 10022211220.

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, 1035805 + ... + 1045435.

It is an arithmetic number, because the mean of its divisors is an integer number (501230016).

Almost surely, 210022211220 is an apocalyptic number.

10022211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10022211220 is an abundant number, since it is smaller than the sum of its proper divisors (14036829548).

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

10022211220 is a wasteful number, since it uses less digits than its factorization.

10022211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17080 (or 17078 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 10022211220 its reverse (2211222001), we get a palindrome (12233433221).

The spelling of 10022211220 in words is "ten billion, twenty-two million, two hundred eleven thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 7433 9631 14866 19262 29732 37165 38524 48155 52031 67417 74330 96310 104062 134834 148660 192620 208124 260155 269668 337085 520310 674170 1040620 1348340 71587223 143174446 286348892 357936115 501110561 715872230 1002221122 1431744460 2004442244 2505552805 5011105610 10022211220