22000311121 has 4 divisors (see below), whose sum is σ = 22000824244. Its totient is φ = 21999798000.

The previous prime is 22000311103. The next prime is 22000311139. The reversal of 22000311121 is 12111300022.

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

It is an interprime number because it is at equal distance from previous prime (22000311103) and next prime (22000311139).

It can be written as a sum of positive squares in 2 ways, for example, as 2277198400 + 19723112721 = 47720^2 + 140439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22000311121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22000311101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185730 + ... + 280171.

It is an arithmetic number, because the mean of its divisors is an integer number (5500206061).

Almost surely, 2^22000311121 is an apocalyptic number.

It is an amenable number.

22000311121 is a deficient number, since it is larger than the sum of its proper divisors (513123).

22000311121 is an equidigital number, since it uses as much as digits as its factorization.

22000311121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513122.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 22000311121 its reverse (12111300022), we get a palindrome (34111611143).

The spelling of 22000311121 in words is "twenty-two billion, three hundred eleven thousand, one hundred twenty-one".