222232121209 has 16 divisors (see below), whose sum is σ = 257679295360. Its totient is φ = 187714350720.

The previous prime is 222232121203. The next prime is 222232121231. The reversal of 222232121209 is 902121232222.

It is a cyclic number.

It is not a de Polignac number, because 222232121209 - 2²⁷ = 222097903481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222232121203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412687 + ... + 784075.

It is an arithmetic number, because the mean of its divisors is an integer number (16104955960).

Almost surely, 2^222232121209 is an apocalyptic number.

It is an amenable number.

222232121209 is a deficient number, since it is larger than the sum of its proper divisors (35447174151).

222232121209 is a wasteful number, since it uses less digits than its factorization.

222232121209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372640.

The product of its (nonzero) digits is 3456, while the sum is 28.

The spelling of 222232121209 in words is "two hundred twenty-two billion, two hundred thirty-two million, one hundred twenty-one thousand, two hundred nine".