221112011122200 has 288 divisors, whose sum is σ = 831967899150960. Its totient is φ = 52154184268800.

The previous prime is 221112011122147. The next prime is 221112011122273. The reversal of 221112011122200 is 2221110211122.

221112011122200 is a `hidden beast` number, since 2 + 211 + 120 + 1 + 112 + 220 + 0 = 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 71 ways as a sum of consecutive naturals, for example, 150176499 + ... + 151641698.

Almost surely, 2^{221112011122200} is an apocalyptic number.

221112011122200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221112011122200 is an abundant number, since it is smaller than the sum of its proper divisors (610855888028760).

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

221112011122200 is a wasteful number, since it uses less digits than its factorization.

221112011122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301818267 (or 301818255 counting only the distinct ones).

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

Adding to 221112011122200 its reverse (2221110211122), we get a palindrome (223333121333322).

The spelling of 221112011122200 in words is "two hundred twenty-one trillion, one hundred twelve billion, eleven million, one hundred twenty-two thousand, two hundred".