222202021122 has 32 divisors (see below), whose sum is σ = 493962744960. Its totient is φ = 74040269040.

The previous prime is 222202021117. The next prime is 222202021133. The reversal of 222202021122 is 221120202222.

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

It is a junction number, because it is equal to n+sod(n) for n = 222202021095 and 222202021104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 602598 + ... + 898625.

It is an arithmetic number, because the mean of its divisors is an integer number (15436335780).

Almost surely, 2^222202021122 is an apocalyptic number.

222202021122 is an abundant number, since it is smaller than the sum of its proper divisors (271760723838).

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

222202021122 is a wasteful number, since it uses less digits than its factorization.

222202021122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503975 (or 1503969 counting only the distinct ones).

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

Adding to 222202021122 its reverse (221120202222), we get a palindrome (443322223344).

The spelling of 222202021122 in words is "two hundred twenty-two billion, two hundred two million, twenty-one thousand, one hundred twenty-two".