100122431212 has 24 divisors (see below), whose sum is σ = 182115203760. Its totient is φ = 48105879360.

The previous prime is 100122431203. The next prime is 100122431237. The reversal of 100122431212 is 212134221001.

It is a self number, because there is not a number n which added to its sum of digits gives 100122431212.

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, 2020843 + ... + 2069794.

It is an arithmetic number, because the mean of its divisors is an integer number (7588133490).

Almost surely, 2^100122431212 is an apocalyptic number.

It is an amenable number.

100122431212 is a deficient number, since it is larger than the sum of its proper divisors (81992772548).

100122431212 is a wasteful number, since it uses less digits than its factorization.

100122431212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4090881 (or 4090879 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 100122431212 its reverse (212134221001), we get a palindrome (312256652213).

The spelling of 100122431212 in words is "one hundred billion, one hundred twenty-two million, four hundred thirty-one thousand, two hundred twelve".