222121101100 has 18 divisors (see below), whose sum is σ = 482002789604. Its totient is φ = 88848440400.

The previous prime is 222121101089. The next prime is 222121101113. The reversal of 222121101100 is 1101121222.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1110605406 + ... + 1110605605.

Almost surely, 2^222121101100 is an apocalyptic number.

222121101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222121101100 is an abundant number, since it is smaller than the sum of its proper divisors (259881688504).

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

222121101100 is a wasteful number, since it uses less digits than its factorization.

222121101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221211025 (or 2221211018 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 222121101100 its reverse (1101121222), we get a palindrome (223222222322).

The spelling of 222121101100 in words is "two hundred twenty-two billion, one hundred twenty-one million, one hundred one thousand, one hundred".