222122211000 has 128 divisors (see below), whose sum is σ = 711751959360. Its totient is φ = 57631680000.

The previous prime is 222122210971. The next prime is 222122211029. The reversal of 222122211000 is 112221222.

It is an interprime number because it is at equal distance from previous prime (222122210971) and next prime (222122211029).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 889551 + ... + 1111550.

Almost surely, 2^222122211000 is an apocalyptic number.

222122211000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222122211000 is an abundant number, since it is smaller than the sum of its proper divisors (489629748360).

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

222122211000 is a wasteful number, since it uses less digits than its factorization.

222122211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001162 (or 2001148 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222122211000 its reverse (112221222), we get a palindrome (222234432222).

The spelling of 222122211000 in words is "two hundred twenty-two billion, one hundred twenty-two million, two hundred eleven thousand".