22730557331 has 2 divisors, whose sum is σ = 22730557332. Its totient is φ = 22730557330.

The previous prime is 22730557279. The next prime is 22730557351. The reversal of 22730557331 is 13375503722.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22730557331 - 2¹⁸ = 22730295187 is a prime.

It is a super-2 number, since 2×22730557331² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22730557351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11365278665 + 11365278666.

It is an arithmetic number, because the mean of its divisors is an integer number (11365278666).

Almost surely, 2^22730557331 is an apocalyptic number.

22730557331 is a deficient number, since it is larger than the sum of its proper divisors (1).

22730557331 is an equidigital number, since it uses as much as digits as its factorization.

22730557331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 38.

The spelling of 22730557331 in words is "twenty-two billion, seven hundred thirty million, five hundred fifty-seven thousand, three hundred thirty-one".