212121200110 has 16 divisors (see below), whose sum is σ = 401913853200. Its totient is φ = 80382770496.

The previous prime is 212121200107. The next prime is 212121200141. The reversal of 212121200110 is 11002121212.

It is a super-2 number, since 2×212121200110² (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 7 ways as a sum of consecutive naturals, for example, 558213495 + ... + 558213874.

It is an arithmetic number, because the mean of its divisors is an integer number (25119615825).

Almost surely, 2^212121200110 is an apocalyptic number.

212121200110 is a deficient number, since it is larger than the sum of its proper divisors (189792653090).

212121200110 is a wasteful number, since it uses less digits than its factorization.

212121200110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116427395.

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

Adding to 212121200110 its reverse (11002121212), we get a palindrome (223123321322).

The spelling of 212121200110 in words is "two hundred twelve billion, one hundred twenty-one million, two hundred thousand, one hundred ten".