220222202172 has 24 divisors (see below), whose sum is σ = 587259206016. Its totient is φ = 62920629168.

The previous prime is 220222202171. The next prime is 220222202173. The reversal of 220222202172 is 271202222022.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (220222202171) and next prime (220222202173).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220222202171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1310846358 + ... + 1310846525.

It is an arithmetic number, because the mean of its divisors is an integer number (24469133584).

Almost surely, 2^220222202172 is an apocalyptic number.

It is an amenable number.

220222202172 is an abundant number, since it is smaller than the sum of its proper divisors (367037003844).

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

220222202172 is a wasteful number, since it uses less digits than its factorization.

220222202172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2621692897 (or 2621692895 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

Adding to 220222202172 its reverse (271202222022), we get a palindrome (491424424194).

The spelling of 220222202172 in words is "two hundred twenty billion, two hundred twenty-two million, two hundred two thousand, one hundred seventy-two".