212121010100110 has 16 divisors (see below), whose sum is σ = 385386209006256. Its totient is φ = 84055428300928.

The previous prime is 212121010100047. The next prime is 212121010100179. The reversal of 212121010100110 is 11001010121212.

It is a happy number.

212121010100110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×212121010100110³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99121966267 + ... + 99121968406.

It is an arithmetic number, because the mean of its divisors is an integer number (24086638062891).

Almost surely, 2^{212121010100110} is an apocalyptic number.

212121010100110 is a deficient number, since it is larger than the sum of its proper divisors (173265198906146).

212121010100110 is a wasteful number, since it uses less digits than its factorization.

212121010100110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198243934787.

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

Adding to 212121010100110 its reverse (11001010121212), we get a palindrome (223122020221322).

The spelling of 212121010100110 in words is "two hundred twelve trillion, one hundred twenty-one billion, ten million, one hundred thousand, one hundred ten".