22011122210 has 64 divisors (see below), whose sum is σ = 49669611264. Its totient is φ = 6822662400.

The previous prime is 22011122207. The next prime is 22011122303. The reversal of 22011122210 is 1222111022.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60404 + ... + 218336.

It is an arithmetic number, because the mean of its divisors is an integer number (776087676).

Almost surely, 2^22011122210 is an apocalyptic number.

22011122210 is an abundant number, since it is smaller than the sum of its proper divisors (27658489054).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22011122210 is a wasteful number, since it uses less digits than its factorization.

22011122210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158139.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22011122210 its reverse (1222111022), we get a palindrome (23233233232).

The spelling of 22011122210 in words is "twenty-two billion, eleven million, one hundred twenty-two thousand, two hundred ten".