222222202201100 has 18 divisors (see below), whose sum is σ = 482222178776604. Its totient is φ = 88888880880400.

The previous prime is 222222202201099. The next prime is 222222202201123. The reversal of 222222202201100 is 1102202222222.

It is a super-2 number, since 2×222222202201100² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1111111010906 + ... + 1111111011105.

Almost surely, 2^{222222202201100} is an apocalyptic number.

222222202201100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222222202201100 is an abundant number, since it is smaller than the sum of its proper divisors (259999976575504).

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

222222202201100 is a wasteful number, since it uses less digits than its factorization.

222222202201100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222222022025 (or 2222222022018 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 222222202201100 its reverse (1102202222222), we get a palindrome (223324404423322).

The spelling of 222222202201100 in words is "two hundred twenty-two trillion, two hundred twenty-two billion, two hundred two million, two hundred one thousand, one hundred".