20221211022113 has 4 divisors (see below), whose sum is σ = 20323856763540. Its totient is φ = 20118565280688.

The previous prime is 20221211022079. The next prime is 20221211022119. The reversal of 20221211022113 is 31122011212202.

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 9804119109409 + 10417091912704 = 3131153^2 + 3227552^2 .

It is a cyclic number.

It is not a de Polignac number, because 20221211022113 - 2¹⁸ = 20221210759969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221211022119) 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, 51322870418 + ... + 51322870811.

It is an arithmetic number, because the mean of its divisors is an integer number (5080964190885).

Almost surely, 2^{20221211022113} is an apocalyptic number.

It is an amenable number.

20221211022113 is a deficient number, since it is larger than the sum of its proper divisors (102645741427).

20221211022113 is a wasteful number, since it uses less digits than its factorization.

20221211022113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102645741426.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 20221211022113 its reverse (31122011212202), we get a palindrome (51343222234315).

The spelling of 20221211022113 in words is "twenty trillion, two hundred twenty-one billion, two hundred eleven million, twenty-two thousand, one hundred thirteen".