21211001102110 has 32 divisors (see below), whose sum is σ = 38287961072640. Its totient is φ = 8460370074912.

The previous prime is 21211001102089. The next prime is 21211001102141. The reversal of 21211001102110 is 1120110011212.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34260927 + ... + 34874533.

It is an arithmetic number, because the mean of its divisors is an integer number (1196498783520).

Almost surely, 2^{21211001102110} is an apocalyptic number.

21211001102110 is a deficient number, since it is larger than the sum of its proper divisors (17076959970530).

21211001102110 is a wasteful number, since it uses less digits than its factorization.

21211001102110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623400.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 21211001102110 its reverse (1120110011212), we get a palindrome (22331111113322).

The spelling of 21211001102110 in words is "twenty-one trillion, two hundred eleven billion, one million, one hundred two thousand, one hundred ten".