22125031535261 has 2 divisors, whose sum is σ = 22125031535262. Its totient is φ = 22125031535260.

The previous prime is 22125031535237. The next prime is 22125031535273. The reversal of 22125031535261 is 16253513052122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21260112935161 + 864918600100 = 4610869^2 + 930010^2 .

It is a cyclic number.

It is not a de Polignac number, because 22125031535261 - 2⁶ = 22125031535197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22125031535161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11062515767630 + 11062515767631.

It is an arithmetic number, because the mean of its divisors is an integer number (11062515767631).

Almost surely, 2^{22125031535261} is an apocalyptic number.

It is an amenable number.

22125031535261 is a deficient number, since it is larger than the sum of its proper divisors (1).

22125031535261 is an equidigital number, since it uses as much as digits as its factorization.

22125031535261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108000, while the sum is 38.

Adding to 22125031535261 its reverse (16253513052122), we get a palindrome (38378544587383).

The spelling of 22125031535261 in words is "twenty-two trillion, one hundred twenty-five billion, thirty-one million, five hundred thirty-five thousand, two hundred sixty-one".