210021212120110 has 32 divisors (see below), whose sum is σ = 382127456535552. Its totient is φ = 83101547736480.

The previous prime is 210021212120059. The next prime is 210021212120117. The reversal of 210021212120110 is 11021212120012.

It is a super-2 number, since 2×210021212120110² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210021212120117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110973904 + ... + 112850563.

It is an arithmetic number, because the mean of its divisors is an integer number (11941483016736).

Almost surely, 2^{210021212120110} is an apocalyptic number.

210021212120110 is a deficient number, since it is larger than the sum of its proper divisors (172106244415442).

210021212120110 is a wasteful number, since it uses less digits than its factorization.

210021212120110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223825488.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 210021212120110 its reverse (11021212120012), we get a palindrome (221042424240122).

The spelling of 210021212120110 in words is "two hundred ten trillion, twenty-one billion, two hundred twelve million, one hundred twenty thousand, one hundred ten".