22132213121 has 2 divisors, whose sum is σ = 22132213122. Its totient is φ = 22132213120.

The previous prime is 22132213009. The next prime is 22132213183. The reversal of 22132213121 is 12131223122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11090406721 + 11041806400 = 105311^2 + 105080^2 .

It is a cyclic number.

It is not a de Polignac number, because 22132213121 - 2¹⁸ = 22131950977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22132213093 and 22132213102.

It is not a weakly prime, because it can be changed into another prime (22132213421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11066106560 + 11066106561.

It is an arithmetic number, because the mean of its divisors is an integer number (11066106561).

Almost surely, 2^22132213121 is an apocalyptic number.

It is an amenable number.

22132213121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22132213121 is an equidigital number, since it uses as much as digits as its factorization.

22132213121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 20.

Adding to 22132213121 its reverse (12131223122), we get a palindrome (34263436243).

The spelling of 22132213121 in words is "twenty-two billion, one hundred thirty-two million, two hundred thirteen thousand, one hundred twenty-one".