221100112022202 has 48 divisors (see below), whose sum is σ = 557815916062080. Its totient is φ = 61979546225376.

The previous prime is 221100112022197. The next prime is 221100112022233. The reversal of 221100112022202 is 202220211001122.

It is a happy number.

221100112022202 is a `hidden beast` number, since 221 + 10 + 0 + 11 + 202 + 220 + 2 = 666.

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 23 ways as a sum of consecutive naturals, for example, 16554359302 + ... + 16554372657.

It is an arithmetic number, because the mean of its divisors is an integer number (11621164917960).

Almost surely, 2^{221100112022202} is an apocalyptic number.

221100112022202 is an abundant number, since it is smaller than the sum of its proper divisors (336715804039878).

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

221100112022202 is a wasteful number, since it uses less digits than its factorization.

221100112022202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33108732027 (or 33108732024 counting only the distinct ones).

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

Adding to 221100112022202 its reverse (202220211001122), we get a palindrome (423320323023324).

The spelling of 221100112022202 in words is "two hundred twenty-one trillion, one hundred billion, one hundred twelve million, twenty-two thousand, two hundred two".