100122221212 has 24 divisors (see below), whose sum is σ = 189261977072. Its totient is φ = 46070640000.

The previous prime is 100122221209. The next prime is 100122221273. The reversal of 100122221212 is 212122221001.

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 7 ways as a sum of consecutive naturals, for example, 2891289 + ... + 2925712.

Almost surely, 2^100122221212 is an apocalyptic number.

It is an amenable number.

100122221212 is a deficient number, since it is larger than the sum of its proper divisors (89139755860).

100122221212 is a wasteful number, since it uses less digits than its factorization.

100122221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5817349 (or 5817347 counting only the distinct ones).

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

Adding to 100122221212 its reverse (212122221001), we get a palindrome (312244442213).

The spelling of 100122221212 in words is "one hundred billion, one hundred twenty-two million, two hundred twenty-one thousand, two hundred twelve".