221002200122202 has 24 divisors (see below), whose sum is σ = 478915947700320. Its totient is φ = 73655423512200.

The previous prime is 221002200122173. The next prime is 221002200122251. The reversal of 221002200122202 is 202221002200122.

221002200122202 is a `hidden beast` number, since 2 + 210 + 0 + 220 + 0 + 12 + 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 11 ways as a sum of consecutive naturals, for example, 997930252 + ... + 998151687.

It is an arithmetic number, because the mean of its divisors is an integer number (19954831154180).

Almost surely, 2^{221002200122202} is an apocalyptic number.

221002200122202 is an abundant number, since it is smaller than the sum of its proper divisors (257913747578118).

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

221002200122202 is a wasteful number, since it uses less digits than its factorization.

221002200122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996088098 (or 1996088095 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 221002200122202 its reverse (202221002200122), we get a palindrome (423223202322324).

It can be divided in two parts, 221002200122 and 202, that multiplied together give a palindrome (44642444424644).

The spelling of 221002200122202 in words is "two hundred twenty-one trillion, two billion, two hundred million, one hundred twenty-two thousand, two hundred two".