125522236381 has 2 divisors, whose sum is σ = 125522236382. Its totient is φ = 125522236380.

The previous prime is 125522236379. The next prime is 125522236387. The reversal of 125522236381 is 183632225521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117343928025 + 8178308356 = 342555^2 + 90434^2 .

It is a cyclic number.

It is not a de Polignac number, because 125522236381 - 2¹ = 125522236379 is a prime.

It is a super-2 number, since 2×125522236381² (a number of 23 digits) contains 22 as substring.

Together with 125522236379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125522236387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62761118190 + 62761118191.

It is an arithmetic number, because the mean of its divisors is an integer number (62761118191).

Almost surely, 2^125522236381 is an apocalyptic number.

It is an amenable number.

125522236381 is a deficient number, since it is larger than the sum of its proper divisors (1).

125522236381 is an equidigital number, since it uses as much as digits as its factorization.

125522236381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 40.

The spelling of 125522236381 in words is "one hundred twenty-five billion, five hundred twenty-two million, two hundred thirty-six thousand, three hundred eighty-one".