22732121 has 2 divisors, whose sum is σ = 22732122. Its totient is φ = 22732120.

The previous prime is 22732117. The next prime is 22732133. The reversal of 22732121 is 12123722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22705225 + 26896 = 4765^2 + 164^2 .

It is a cyclic number.

It is not a de Polignac number, because 22732121 - 2² = 22732117 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22732093 and 22732102.

It is not a weakly prime, because it can be changed into another prime (22734121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11366060 + 11366061.

It is an arithmetic number, because the mean of its divisors is an integer number (11366061).

Almost surely, 2^22732121 is an apocalyptic number.

It is an amenable number.

22732121 is a deficient number, since it is larger than the sum of its proper divisors (1).

22732121 is an equidigital number, since it uses as much as digits as its factorization.

22732121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 20.

The square root of 22732121 is about 4767.8214102460. The cubic root of 22732121 is about 283.2783079610.

Adding to 22732121 its reverse (12123722), we get a palindrome (34855843).

It can be divided in two parts, 22732 and 121, that multiplied together give a palindrome (2750572).

The spelling of 22732121 in words is "twenty-two million, seven hundred thirty-two thousand, one hundred twenty-one".