1222222100202 has 48 divisors (see below), whose sum is σ = 2788991917920. Its totient is φ = 385761636000.

The previous prime is 1222222100173. The next prime is 1222222100261. The reversal of 1222222100202 is 2020012222221.

It is a super-3 number, since 3×1222222100202³ (a number of 37 digits) contains 333 as substring.

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 23 ways as a sum of consecutive naturals, for example, 289824 + ... + 1590107.

It is an arithmetic number, because the mean of its divisors is an integer number (58103998290).

Almost surely, 2^{1222222100202} is an apocalyptic number.

1222222100202 is an abundant number, since it is smaller than the sum of its proper divisors (1566769817718).

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

1222222100202 is a wasteful number, since it uses less digits than its factorization.

1222222100202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1881859 (or 1881856 counting only the distinct ones).

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

Adding to 1222222100202 its reverse (2020012222221), we get a palindrome (3242234322423).

The spelling of 1222222100202 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred thousand, two hundred two".