22000001101121 has 4 divisors (see below), whose sum is σ = 22111676233812. Its totient is φ = 21888325968432.

The previous prime is 22000001101087. The next prime is 22000001101157. The reversal of 22000001101121 is 12110110000022.

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 21218589300496 + 781411800625 = 4606364^2 + 883975^2 .

It is a cyclic number.

It is not a de Polignac number, because 22000001101121 - 2³⁴ = 21982821231937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22000001101021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55837566050 + ... + 55837566443.

It is an arithmetic number, because the mean of its divisors is an integer number (5527919058453).

Almost surely, 2^{22000001101121} is an apocalyptic number.

It is an amenable number.

22000001101121 is a deficient number, since it is larger than the sum of its proper divisors (111675132691).

22000001101121 is a wasteful number, since it uses less digits than its factorization.

22000001101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111675132690.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 22000001101121 its reverse (12110110000022), we get a palindrome (34110111101143).

The spelling of 22000001101121 in words is "twenty-two trillion, one million, one hundred one thousand, one hundred twenty-one".