22220001122202 has 64 divisors (see below), whose sum is σ = 53816746757760. Its totient is φ = 6754550833152.

The previous prime is 22220001122191. The next prime is 22220001122233. The reversal of 22220001122202 is 20222110002222.

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 31 ways as a sum of consecutive naturals, for example, 190618983 + ... + 190735514.

It is an arithmetic number, because the mean of its divisors is an integer number (840886668090).

Almost surely, 2^{22220001122202} is an apocalyptic number.

22220001122202 is an abundant number, since it is smaller than the sum of its proper divisors (31596745635558).

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

22220001122202 is a wasteful number, since it uses less digits than its factorization.

22220001122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381354604 (or 381354598 counting only the distinct ones).

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

Adding to 22220001122202 its reverse (20222110002222), we get a palindrome (42442111124424).

The spelling of 22220001122202 in words is "twenty-two trillion, two hundred twenty billion, one million, one hundred twenty-two thousand, two hundred two".