21120211102010 has 64 divisors (see below), whose sum is σ = 38551480326144. Its totient is φ = 8329892256000.

The previous prime is 21120211101971. The next prime is 21120211102049. The reversal of 21120211102010 is 1020111202112.

It is an interprime number because it is at equal distance from previous prime (21120211101971) and next prime (21120211102049).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 667015439 + ... + 667047101.

It is an arithmetic number, because the mean of its divisors is an integer number (602366880096).

Almost surely, 2^{21120211102010} is an apocalyptic number.

21120211102010 is a deficient number, since it is larger than the sum of its proper divisors (17431269224134).

21120211102010 is a wasteful number, since it uses less digits than its factorization.

21120211102010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34479.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21120211102010 its reverse (1020111202112), we get a palindrome (22140322304122).

The spelling of 21120211102010 in words is "twenty-one trillion, one hundred twenty billion, two hundred eleven million, one hundred two thousand, ten".