220122221112 has 64 divisors (see below), whose sum is σ = 611576697600. Its totient is φ = 73358943840.

The previous prime is 220122221051. The next prime is 220122221131. The reversal of 220122221112 is 211122221022.

It is a happy number.

220122221112 is a `hidden beast` number, since 220 + 1 + 222 + 211 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 970287 + ... + 1175457.

It is an arithmetic number, because the mean of its divisors is an integer number (9555885900).

Almost surely, 2^220122221112 is an apocalyptic number.

It is an amenable number.

220122221112 is an abundant number, since it is smaller than the sum of its proper divisors (391454476488).

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

220122221112 is a wasteful number, since it uses less digits than its factorization.

220122221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210153 (or 210143 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220122221112 its reverse (211122221022), we get a palindrome (431244442134).

The spelling of 220122221112 in words is "two hundred twenty billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred twelve".