222120201000 has 128 divisors (see below), whose sum is σ = 701365392000. Its totient is φ = 58518348800.

The previous prime is 222120200993. The next prime is 222120201001. The reversal of 222120201000 is 102021222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (222120201001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197025 + ... + 695024.

It is an arithmetic number, because the mean of its divisors is an integer number (5479417125).

Almost surely, 2^222120201000 is an apocalyptic number.

222120201000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222120201000 is an abundant number, since it is smaller than the sum of its proper divisors (479245191000).

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

222120201000 is a wasteful number, since it uses less digits than its factorization.

222120201000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892156 (or 892142 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 222120201000 its reverse (102021222), we get a palindrome (222222222222).

The spelling of 222120201000 in words is "two hundred twenty-two billion, one hundred twenty million, two hundred one thousand".