10252122135421 has 2 divisors, whose sum is σ = 10252122135422. Its totient is φ = 10252122135420.

The previous prime is 10252122135413. The next prime is 10252122135461. The reversal of 10252122135421 is 12453122125201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9389107147225 + 863014988196 = 3064165^2 + 928986^2 .

It is a cyclic number.

It is not a de Polignac number, because 10252122135421 - 2³ = 10252122135413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10252122135461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5126061067710 + 5126061067711.

It is an arithmetic number, because the mean of its divisors is an integer number (5126061067711).

Almost surely, 2^{10252122135421} is an apocalyptic number.

It is an amenable number.

10252122135421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10252122135421 is an equidigital number, since it uses as much as digits as its factorization.

10252122135421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 31.

The spelling of 10252122135421 in words is "ten trillion, two hundred fifty-two billion, one hundred twenty-two million, one hundred thirty-five thousand, four hundred twenty-one".