222123020985 has 64 divisors (see below), whose sum is σ = 415763712000. Its totient is φ = 112204958400.

The previous prime is 222123020921. The next prime is 222123020989. The reversal of 222123020985 is 589020321222.

It is not a de Polignac number, because 222123020985 - 2⁶ = 222123020921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222123020989) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16796706 + ... + 16809924.

It is an arithmetic number, because the mean of its divisors is an integer number (6496308000).

Almost surely, 2^222123020985 is an apocalyptic number.

It is an amenable number.

222123020985 is a deficient number, since it is larger than the sum of its proper divisors (193640691015).

222123020985 is a wasteful number, since it uses less digits than its factorization.

222123020985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19803 (or 19797 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 222123020985 in words is "two hundred twenty-two billion, one hundred twenty-three million, twenty thousand, nine hundred eighty-five".