22125153521 has 2 divisors, whose sum is σ = 22125153522. Its totient is φ = 22125153520.

The previous prime is 22125153419. The next prime is 22125153563. The reversal of 22125153521 is 12535152122.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19666977121 + 2458176400 = 140239^2 + 49580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22125153521 is a prime.

It is not a weakly prime, because it can be changed into another prime (22125153571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11062576760 + 11062576761.

It is an arithmetic number, because the mean of its divisors is an integer number (11062576761).

Almost surely, 2^22125153521 is an apocalyptic number.

It is an amenable number.

22125153521 is a deficient number, since it is larger than the sum of its proper divisors (1).

22125153521 is an equidigital number, since it uses as much as digits as its factorization.

22125153521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6000, while the sum is 29.

The spelling of 22125153521 in words is "twenty-two billion, one hundred twenty-five million, one hundred fifty-three thousand, five hundred twenty-one".