212120210110 has 32 divisors (see below), whose sum is σ = 383146459200. Its totient is φ = 84553028352.

The previous prime is 212120210047. The next prime is 212120210131. The reversal of 212120210110 is 11012021212.

It is a super-2 number, since 2×212120210110² (a number of 23 digits) contains 22 as substring.

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, 3304642 + ... + 3368218.

It is an arithmetic number, because the mean of its divisors is an integer number (11973326850).

Almost surely, 2^212120210110 is an apocalyptic number.

212120210110 is a deficient number, since it is larger than the sum of its proper divisors (171026249090).

212120210110 is a wasteful number, since it uses less digits than its factorization.

212120210110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64740.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212120210110 its reverse (11012021212), we get a palindrome (223132231322).

It can be divided in two parts, 2121202 and 10110, that added together give a palindrome (2131312).

The spelling of 212120210110 in words is "two hundred twelve billion, one hundred twenty million, two hundred ten thousand, one hundred ten".