22102021120985 has 24 divisors (see below), whose sum is σ = 28720739608704. Its totient is φ = 16320816083520.

The previous prime is 22102021120981. The next prime is 22102021121009. The reversal of 22102021120985 is 58902112020122.

It is a happy number.

It is not a de Polignac number, because 22102021120985 - 2² = 22102021120981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22102021120981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20334224 + ... + 21393566.

It is an arithmetic number, because the mean of its divisors is an integer number (1196697483696).

Almost surely, 2^{22102021120985} is an apocalyptic number.

It is an amenable number.

22102021120985 is a deficient number, since it is larger than the sum of its proper divisors (6618718487719).

22102021120985 is a wasteful number, since it uses less digits than its factorization.

22102021120985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084065 (or 1084052 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 35.

The spelling of 22102021120985 in words is "twenty-two trillion, one hundred two billion, twenty-one million, one hundred twenty thousand, nine hundred eighty-five".