22101121210985 has 8 divisors (see below), whose sum is σ = 27435874606920. Its totient is φ = 17071210866304.

The previous prime is 22101121210951. The next prime is 22101121211033. The reversal of 22101121210985 is 58901212110122.

It can be written as a sum of positive squares in 4 ways, for example, as 968454778201 + 21132666432784 = 984101^2 + 4597028^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22101121210985 - 2¹⁶ = 22101121145449 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76210762652 + ... + 76210762941.

It is an arithmetic number, because the mean of its divisors is an integer number (3429484325865).

Almost surely, 2^{22101121210985} is an apocalyptic number.

It is an amenable number.

22101121210985 is a deficient number, since it is larger than the sum of its proper divisors (5334753395935).

22101121210985 is a wasteful number, since it uses less digits than its factorization.

22101121210985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152421525627.

The product of its (nonzero) digits is 5760, while the sum is 35.

The spelling of 22101121210985 in words is "twenty-two trillion, one hundred one billion, one hundred twenty-one million, two hundred ten thousand, nine hundred eighty-five".