122200121212 has 48 divisors (see below), whose sum is σ = 235719947232. Its totient is φ = 55073491200.

The previous prime is 122200121189. The next prime is 122200121231. The reversal of 122200121212 is 212121002221.

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, 15462462 + ... + 15470362.

It is an arithmetic number, because the mean of its divisors is an integer number (4910832234).

Almost surely, 2^122200121212 is an apocalyptic number.

It is an amenable number.

122200121212 is a deficient number, since it is larger than the sum of its proper divisors (113519826020).

122200121212 is a wasteful number, since it uses less digits than its factorization.

122200121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14878 (or 14876 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122200121212 its reverse (212121002221), we get a palindrome (334321123433).

The spelling of 122200121212 in words is "one hundred twenty-two billion, two hundred million, one hundred twenty-one thousand, two hundred twelve".