221020200222202 has 16 divisors (see below), whose sum is σ = 349984967459040. Its totient is φ = 104392067867568.

The previous prime is 221020200222163. The next prime is 221020200222251. The reversal of 221020200222202 is 202222002020122.

It is a super-2 number, since 2×221020200222202² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 221020200222202.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8380852893 + ... + 8380879264.

It is an arithmetic number, because the mean of its divisors is an integer number (21874060466190).

Almost surely, 2^{221020200222202} is an apocalyptic number.

221020200222202 is a deficient number, since it is larger than the sum of its proper divisors (128964767236838).

221020200222202 is a wasteful number, since it uses less digits than its factorization.

221020200222202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16761732525.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 221020200222202 its reverse (202222002020122), we get a palindrome (423242202242324).

The spelling of 221020200222202 in words is "two hundred twenty-one trillion, twenty billion, two hundred million, two hundred twenty-two thousand, two hundred two".