222222101000100 has 72 divisors (see below), whose sum is σ = 643769341416768. Its totient is φ = 59184874012800.

The previous prime is 222222101000093. The next prime is 222222101000113. The reversal of 222222101000100 is 1000101222222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 222222101000100.

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, 464466256 + ... + 464944455.

Almost surely, 2^{222222101000100} is an apocalyptic number.

222222101000100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222222101000100 is an abundant number, since it is smaller than the sum of its proper divisors (421547240416668).

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

222222101000100 is a wasteful number, since it uses less digits than its factorization.

222222101000100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 929411525 (or 929411518 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222222101000100 its reverse (1000101222222), we get a palindrome (223222202222322).

The spelling of 222222101000100 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, one hundred one million, one hundred", and thus it is an aban number.