100012210312 has 32 divisors (see below), whose sum is σ = 215750232000. Its totient is φ = 42574705344.

The previous prime is 100012210289. The next prime is 100012210321. The reversal of 100012210312 is 213012210001.

It is a super-2 number, since 2×100012210312² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100012210292 and 100012210301.

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, 5984718 + ... + 6001405.

It is an arithmetic number, because the mean of its divisors is an integer number (6742194750).

Almost surely, 2^100012210312 is an apocalyptic number.

It is an amenable number.

100012210312 is an abundant number, since it is smaller than the sum of its proper divisors (115738021688).

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

100012210312 is a wasteful number, since it uses less digits than its factorization.

100012210312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11986285 (or 11986281 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 100012210312 its reverse (213012210001), we get a palindrome (313024420313).

The spelling of 100012210312 in words is "one hundred billion, twelve million, two hundred ten thousand, three hundred twelve".