22113131022001 has 4 divisors (see below), whose sum is σ = 22253978990452. Its totient is φ = 21972283053552.

The previous prime is 22113131021981. The next prime is 22113131022019. The reversal of 22113131022001 is 10022013131122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12565500696225 + 9547630325776 = 3544785^2 + 3089924^2 .

It is a cyclic number.

It is not a de Polignac number, because 22113131022001 - 2⁷ = 22113131021873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22113131022001.

It is not an unprimeable number, because it can be changed into a prime (22113131022061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70423983990 + ... + 70423984303.

It is an arithmetic number, because the mean of its divisors is an integer number (5563494747613).

Almost surely, 2^{22113131022001} is an apocalyptic number.

It is an amenable number.

22113131022001 is a deficient number, since it is larger than the sum of its proper divisors (140847968451).

22113131022001 is a wasteful number, since it uses less digits than its factorization.

22113131022001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140847968450.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 22113131022001 its reverse (10022013131122), we get a palindrome (32135144153123).

The spelling of 22113131022001 in words is "twenty-two trillion, one hundred thirteen billion, one hundred thirty-one million, twenty-two thousand, one".