22311013121 has 4 divisors (see below), whose sum is σ = 22579820592. Its totient is φ = 22042205652.

The previous prime is 22311013099. The next prime is 22311013139. The reversal of 22311013121 is 12131011322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22311013121 - 2²² = 22306818817 is a prime.

It is a super-3 number, since 3×22311013121³ (a number of 32 digits) contains 333 as substring.

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 22311013121.

It is not an unprimeable number, because it can be changed into a prime (22311013181) 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, 134403611 + ... + 134403776.

It is an arithmetic number, because the mean of its divisors is an integer number (5644955148).

Almost surely, 2^22311013121 is an apocalyptic number.

It is an amenable number.

22311013121 is a deficient number, since it is larger than the sum of its proper divisors (268807471).

22311013121 is an equidigital number, since it uses as much as digits as its factorization.

22311013121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268807470.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 22311013121 its reverse (12131011322), we get a palindrome (34442024443).

The spelling of 22311013121 in words is "twenty-two billion, three hundred eleven million, thirteen thousand, one hundred twenty-one".