202220111122200 has 72 divisors (see below), whose sum is σ = 679122539858100. Its totient is φ = 53925362965440.

The previous prime is 202220111122181. The next prime is 202220111122213. The reversal of 202220111122200 is 2221111022202.

It is a happy number.

202220111122200 is a `hidden beast` number, since 202 + 220 + 1 + 11 + 12 + 220 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×202220111122200² (a number of 29 digits) contains 22 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 an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 56172251290 + ... + 56172254889.

Almost surely, 2^{202220111122200} is an apocalyptic number.

202220111122200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202220111122200 is an abundant number, since it is smaller than the sum of its proper divisors (476902428735900).

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

202220111122200 is a wasteful number, since it uses less digits than its factorization.

202220111122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112344506201 (or 112344506189 counting only the distinct ones).

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

Adding to 202220111122200 its reverse (2221111022202), we get a palindrome (204441222144402).

The spelling of 202220111122200 in words is "two hundred two trillion, two hundred twenty billion, one hundred eleven million, one hundred twenty-two thousand, two hundred".