221122202200 has 48 divisors (see below), whose sum is σ = 514598771160. Its totient is φ = 88364640000.

The previous prime is 221122202173. The next prime is 221122202209. The reversal of 221122202200 is 2202221122.

221122202200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×221122202200⁴ (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221122202209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315781 + ... + 736180.

Almost surely, 2^221122202200 is an apocalyptic number.

221122202200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221122202200 is an abundant number, since it is smaller than the sum of its proper divisors (293476568960).

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

221122202200 is a wasteful number, since it uses less digits than its factorization.

221122202200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1053028 (or 1053019 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 221122202200 its reverse (2202221122), we get a palindrome (223324423322).

The spelling of 221122202200 in words is "two hundred twenty-one billion, one hundred twenty-two million, two hundred two thousand, two hundred".