222111122202 has 24 divisors (see below), whose sum is σ = 481344728436. Its totient is φ = 74021046336.

The previous prime is 222111122161. The next prime is 222111122221. The reversal of 222111122202 is 202221111222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 201429518481 + 20681603721 = 448809^2 + 143811^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1247083 + ... + 1414014.

Almost surely, 2^222111122202 is an apocalyptic number.

222111122202 is an abundant number, since it is smaller than the sum of its proper divisors (259233606234).

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

222111122202 is a wasteful number, since it uses less digits than its factorization.

222111122202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2665742 (or 2665739 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 222111122202 its reverse (202221111222), we get a palindrome (424332233424).

The spelling of 222111122202 in words is "two hundred twenty-two billion, one hundred eleven million, one hundred twenty-two thousand, two hundred two".