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10122220212 = 2231364886027
BaseRepresentation
bin10010110110101010…
…01101001010110100
3222010102202001201220
421123111031022310
5131212242021322
64352230150340
7505560311046
oct113325151264
928112661656
1010122220212
114324802955
121b65ab23b0
13c54110b20
146c0499a96
153e39a155c
hex25b54d2b4

10122220212 has 24 divisors (see below), whose sum is σ = 25435322976. Its totient is φ = 3114529248.

The previous prime is 10122220187. The next prime is 10122220237. The reversal of 10122220212 is 21202222101.

10122220212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10122220187) and next prime (10122220237).

It is a junction number, because it is equal to n+sod(n) for n = 10122220191 and 10122220200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32442858 + ... + 32443169.

It is an arithmetic number, because the mean of its divisors is an integer number (1059805124).

Almost surely, 210122220212 is an apocalyptic number.

10122220212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10122220212 is an abundant number, since it is smaller than the sum of its proper divisors (15313102764).

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

10122220212 is a wasteful number, since it uses less digits than its factorization.

10122220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64886047 (or 64886045 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10122220212 its reverse (21202222101), we get a palindrome (31324442313).

The spelling of 10122220212 in words is "ten billion, one hundred twenty-two million, two hundred twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 64886027 129772054 194658081 259544108 389316162 778632324 843518351 1687036702 2530555053 3374073404 5061110106 10122220212