221110002122202 has 48 divisors (see below), whose sum is σ = 486253581821280. Its totient is φ = 72598567653216.

The previous prime is 221110002122201. The next prime is 221110002122237. The reversal of 221110002122202 is 202221200011122.

It is a happy number.

221110002122202 is a `hidden beast` number, since 221 + 1 + 10 + 0 + 0 + 212 + 220 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (221110002122201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12640449 + ... + 24535707.

It is an arithmetic number, because the mean of its divisors is an integer number (10130282954610).

Almost surely, 2^{221110002122202} is an apocalyptic number.

221110002122202 is an abundant number, since it is smaller than the sum of its proper divisors (265143579699078).

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

221110002122202 is a wasteful number, since it uses less digits than its factorization.

221110002122202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11910747 (or 11910744 counting only the distinct ones).

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

Adding to 221110002122202 its reverse (202221200011122), we get a palindrome (423331202133324).

The spelling of 221110002122202 in words is "two hundred twenty-one trillion, one hundred ten billion, two million, one hundred twenty-two thousand, two hundred two".