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10222112212 = 2213296778589
BaseRepresentation
bin10011000010100100…
…10000110111010100
3222101101201002210121
421201102100313110
5131413330042322
64410155201324
7511212343264
oct114122206724
928341632717
1010222112212
114376130224
121b93446244
13c6ba17410
146cd85d7a4
153ec633ec7
hex261490dd4

10222112212 has 24 divisors (see below), whose sum is σ = 19929054600. Its totient is φ = 4555211136.

The previous prime is 10222112209. The next prime is 10222112231. The reversal of 10222112212 is 21221122201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1661051536 + 8561060676 = 40756^2 + 92526^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3387787 + ... + 3390802.

It is an arithmetic number, because the mean of its divisors is an integer number (830377275).

Almost surely, 210222112212 is an apocalyptic number.

It is an amenable number.

10222112212 is a deficient number, since it is larger than the sum of its proper divisors (9706942388).

10222112212 is a wasteful number, since it uses less digits than its factorization.

10222112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6778635 (or 6778633 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10222112212 its reverse (21221122201), we get a palindrome (31443234413).

The spelling of 10222112212 in words is "ten billion, two hundred twenty-two million, one hundred twelve thousand, two hundred twelve".

Divisors: 1 2 4 13 26 29 52 58 116 377 754 1508 6778589 13557178 27114356 88121657 176243314 196579081 352486628 393158162 786316324 2555528053 5111056106 10222112212