22133129 has 2 divisors, whose sum is σ = 22133130. Its totient is φ = 22133128.

The previous prime is 22133113. The next prime is 22133173. The reversal of 22133129 is 92133122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19404025 + 2729104 = 4405^2 + 1652^2 .

It is a cyclic number.

It is not a de Polignac number, because 22133129 - 2⁴ = 22133113 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22133329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11066564 + 11066565.

It is an arithmetic number, because the mean of its divisors is an integer number (11066565).

Almost surely, 2^22133129 is an apocalyptic number.

It is an amenable number.

22133129 is a deficient number, since it is larger than the sum of its proper divisors (1).

22133129 is an equidigital number, since it uses as much as digits as its factorization.

22133129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

The square root of 22133129 is about 4704.5859541515. The cubic root of 22133129 is about 280.7679978640.

The spelling of 22133129 in words is "twenty-two million, one hundred thirty-three thousand, one hundred twenty-nine".