220122111172 has 48 divisors (see below), whose sum is σ = 391409867520. Its totient is φ = 108303706368.

The previous prime is 220122111169. The next prime is 220122111173. The reversal of 220122111172 is 271111221022.

It is not an unprimeable number, because it can be changed into a prime (220122111173) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148429543 + ... + 148431025.

It is an arithmetic number, because the mean of its divisors is an integer number (8154372240).

Almost surely, 2^220122111172 is an apocalyptic number.

It is an amenable number.

220122111172 is a deficient number, since it is larger than the sum of its proper divisors (171287756348).

220122111172 is a wasteful number, since it uses less digits than its factorization.

220122111172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3292 (or 3290 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 22.

Adding to 220122111172 its reverse (271111221022), we get a palindrome (491233332194).

The spelling of 220122111172 in words is "two hundred twenty billion, one hundred twenty-two million, one hundred eleven thousand, one hundred seventy-two".