22222101122212 has 24 divisors (see below), whose sum is σ = 38904934355840. Its totient is φ = 11106406458720.

The previous prime is 22222101122171. The next prime is 22222101122227. The reversal of 22222101122212 is 21222110122222.

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, 108023989 + ... + 108229507.

Almost surely, 2^{22222101122212} is an apocalyptic number.

It is an amenable number.

22222101122212 is a deficient number, since it is larger than the sum of its proper divisors (16682833233628).

22222101122212 is a wasteful number, since it uses less digits than its factorization.

22222101122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216691 (or 216689 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22222101122212 its reverse (21222110122222), we get a palindrome (43444211244434).

The spelling of 22222101122212 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred one million, one hundred twenty-two thousand, two hundred twelve".