22313232121 has 4 divisors (see below), whose sum is σ = 23283372672. Its totient is φ = 21343091572.

The previous prime is 22313232091. The next prime is 22313232131. The reversal of 22313232121 is 12123231322.

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 22313232121 - 2¹⁵ = 22313199353 is a prime.

It is a super-3 number, since 3×22313232121³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22313232092 and 22313232101.

It is not an unprimeable number, because it can be changed into a prime (22313232131) 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, 485070241 + ... + 485070286.

It is an arithmetic number, because the mean of its divisors is an integer number (5820843168).

Almost surely, 2^22313232121 is an apocalyptic number.

It is an amenable number.

22313232121 is a deficient number, since it is larger than the sum of its proper divisors (970140551).

22313232121 is an equidigital number, since it uses as much as digits as its factorization.

22313232121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970140550.

The product of its digits is 864, while the sum is 22.

Adding to 22313232121 its reverse (12123231322), we get a palindrome (34436463443).

The spelling of 22313232121 in words is "twenty-two billion, three hundred thirteen million, two hundred thirty-two thousand, one hundred twenty-one".