222122112011100 has 144 divisors (see below), whose sum is σ = 816093093088000. Its totient is φ = 50770768455360.

The previous prime is 222122112011069. The next prime is 222122112011101. The reversal of 222122112011100 is 1110211221222.

222122112011100 is a `hidden beast` number, since 2 + 221 + 221 + 120 + 1 + 1 + 100 = 666.

It is a super-3 number, since 3×222122112011100³ (a number of 44 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222122112011101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5876227450 + ... + 5876265249.

Almost surely, 2^{222122112011100} is an apocalyptic number.

222122112011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222122112011100 is an abundant number, since it is smaller than the sum of its proper divisors (593970981076900).

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

222122112011100 is a wasteful number, since it uses less digits than its factorization.

222122112011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11752492729 (or 11752492716 counting only the distinct ones).

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

Adding to 222122112011100 its reverse (1110211221222), we get a palindrome (223232323232322).

The spelling of 222122112011100 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, one hundred twelve million, eleven thousand, one hundred".