22515238069 has 2 divisors, whose sum is σ = 22515238070. Its totient is φ = 22515238068.

The previous prime is 22515238061. The next prime is 22515238091. The reversal of 22515238069 is 96083251522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19526429169 + 2988808900 = 139737^2 + 54670^2 .

It is a cyclic number.

It is not a de Polignac number, because 22515238069 - 2³ = 22515238061 is a prime.

It is a super-2 number, since 2×22515238069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22515238061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11257619034 + 11257619035.

It is an arithmetic number, because the mean of its divisors is an integer number (11257619035).

Almost surely, 2^22515238069 is an apocalyptic number.

It is an amenable number.

22515238069 is a deficient number, since it is larger than the sum of its proper divisors (1).

22515238069 is an equidigital number, since it uses as much as digits as its factorization.

22515238069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 22515238069 in words is "twenty-two billion, five hundred fifteen million, two hundred thirty-eight thousand, sixty-nine".