22333132121 has 4 divisors (see below), whose sum is σ = 22358598372. Its totient is φ = 22307665872.

The previous prime is 22333132111. The next prime is 22333132139. The reversal of 22333132121 is 12123133322.

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 17407899721 + 4925232400 = 131939^2 + 70180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22333132121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22333132111) 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, 12731810 + ... + 12733563.

It is an arithmetic number, because the mean of its divisors is an integer number (5589649593).

Almost surely, 2^22333132121 is an apocalyptic number.

It is an amenable number.

22333132121 is a deficient number, since it is larger than the sum of its proper divisors (25466251).

22333132121 is an equidigital number, since it uses as much as digits as its factorization.

22333132121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25466250.

The product of its digits is 1296, while the sum is 23.

Adding to 22333132121 its reverse (12123133322), we get a palindrome (34456265443).

The spelling of 22333132121 in words is "twenty-two billion, three hundred thirty-three million, one hundred thirty-two thousand, one hundred twenty-one".