22221022100202 has 64 divisors (see below), whose sum is σ = 52015530240000. Its totient is φ = 7012233165744.

The previous prime is 22221022100171. The next prime is 22221022100209. The reversal of 22221022100202 is 20200122012222.

22221022100202 is a `hidden beast` number, since 22 + 221 + 0 + 221 + 0 + 0 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (22221022100209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6149952 + ... + 9069947.

It is an arithmetic number, because the mean of its divisors is an integer number (812742660000).

Almost surely, 2^{22221022100202} is an apocalyptic number.

22221022100202 is an abundant number, since it is smaller than the sum of its proper divisors (29794508139798).

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

22221022100202 is a wasteful number, since it uses less digits than its factorization.

22221022100202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15221352 (or 15221346 counting only the distinct ones).

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

Adding to 22221022100202 its reverse (20200122012222), we get a palindrome (42421144112424).

The spelling of 22221022100202 in words is "twenty-two trillion, two hundred twenty-one billion, twenty-two million, one hundred thousand, two hundred two".