22201021211112 has 128 divisors (see below), whose sum is σ = 64010551987200. Its totient is φ = 7122052396800.

The previous prime is 22201021211093. The next prime is 22201021211189. The reversal of 22201021211112 is 21111212010222.

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

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, 7947043 + ... + 10370994.

It is an arithmetic number, because the mean of its divisors is an integer number (500082437400).

Almost surely, 2^{22201021211112} is an apocalyptic number.

It is an amenable number.

22201021211112 is an abundant number, since it is smaller than the sum of its proper divisors (41809530776088).

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

22201021211112 is a wasteful number, since it uses less digits than its factorization.

22201021211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18318264 (or 18318254 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22201021211112 its reverse (21111212010222), we get a palindrome (43312233221334).

The spelling of 22201021211112 in words is "twenty-two trillion, two hundred one billion, twenty-one million, two hundred eleven thousand, one hundred twelve".