21120102100232 has 16 divisors (see below), whose sum is σ = 39821421560400. Its totient is φ = 10501056350800.

The previous prime is 21120102100219. The next prime is 21120102100337. The reversal of 21120102100232 is 23200120102112.

It is a self number, because there is not a number n which added to its sum of digits gives 21120102100232.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7374335894 + ... + 7374338757.

It is an arithmetic number, because the mean of its divisors is an integer number (2488838847525).

Almost surely, 2^{21120102100232} is an apocalyptic number.

It is an amenable number.

21120102100232 is a deficient number, since it is larger than the sum of its proper divisors (18701319460168).

21120102100232 is a wasteful number, since it uses less digits than its factorization.

21120102100232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14748674836 (or 14748674832 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21120102100232 its reverse (23200120102112), we get a palindrome (44320222202344).

The spelling of 21120102100232 in words is "twenty-one trillion, one hundred twenty billion, one hundred two million, one hundred thousand, two hundred thirty-two".