22001012112101 has 12 divisors (see below), whose sum is σ = 24697461114816. Its totient is φ = 19575368605320.

The previous prime is 22001012112091. The next prime is 22001012112193. The reversal of 22001012112101 is 10121121010022.

It is not a de Polignac number, because 22001012112101 - 2²⁶ = 22000945003237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001012112701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1934319275 + ... + 1934330648.

It is an arithmetic number, because the mean of its divisors is an integer number (2058121759568).

Almost surely, 2^{22001012112101} is an apocalyptic number.

It is an amenable number.

22001012112101 is a deficient number, since it is larger than the sum of its proper divisors (2696449002715).

22001012112101 is a wasteful number, since it uses less digits than its factorization.

22001012112101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3868649992 (or 3868649981 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 22001012112101 its reverse (10121121010022), we get a palindrome (32122133122123).

The spelling of 22001012112101 in words is "twenty-two trillion, one billion, twelve million, one hundred twelve thousand, one hundred one".