22102012021985 has 16 divisors (see below), whose sum is σ = 30532581369216. Its totient is φ = 15045040088448.

The previous prime is 22102012021889. The next prime is 22102012022021. The reversal of 22102012021985 is 58912021020122.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22102012021985 - 2¹⁰ = 22102012020961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2304688847 + ... + 2304698436.

It is an arithmetic number, because the mean of its divisors is an integer number (1908286335576).

Almost surely, 2^{22102012021985} is an apocalyptic number.

It is an amenable number.

22102012021985 is a deficient number, since it is larger than the sum of its proper divisors (8430569347231).

22102012021985 is a wasteful number, since it uses less digits than its factorization.

22102012021985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4609387432.

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

The spelling of 22102012021985 in words is "twenty-two trillion, one hundred two billion, twelve million, twenty-one thousand, nine hundred eighty-five".