221002220012202 has 48 divisors (see below), whose sum is σ = 483490807667712. Its totient is φ = 72953733041280.

The previous prime is 221002220012183. The next prime is 221002220012263. The reversal of 221002220012202 is 202210022200122.

221002220012202 is a `hidden beast` number, since 221 + 0 + 0 + 2 + 220 + 0 + 1 + 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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 87119199 + ... + 89620082.

It is an arithmetic number, because the mean of its divisors is an integer number (10072725159744).

Almost surely, 2^{221002220012202} is an apocalyptic number.

221002220012202 is an abundant number, since it is smaller than the sum of its proper divisors (262488587655510).

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

221002220012202 is a wasteful number, since it uses less digits than its factorization.

221002220012202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176739963 (or 176739960 counting only the distinct ones).

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

Adding to 221002220012202 its reverse (202210022200122), we get a palindrome (423212242212324).

The spelling of 221002220012202 in words is "two hundred twenty-one trillion, two billion, two hundred twenty million, twelve thousand, two hundred two".