10057212521 has 2 divisors, whose sum is σ = 10057212522. Its totient is φ = 10057212520.

The previous prime is 10057212497. The next prime is 10057212523. The reversal of 10057212521 is 12521275001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9976014400 + 81198121 = 99880^2 + 9011^2 .

It is a cyclic number.

It is not a de Polignac number, because 10057212521 - 2⁶ = 10057212457 is a prime.

It is a super-2 number, since 2×10057212521² (a number of 21 digits) contains 22 as substring.

Together with 10057212523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10057212523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5028606260 + 5028606261.

It is an arithmetic number, because the mean of its divisors is an integer number (5028606261).

Almost surely, 2^10057212521 is an apocalyptic number.

It is an amenable number.

10057212521 is a deficient number, since it is larger than the sum of its proper divisors (1).

10057212521 is an equidigital number, since it uses as much as digits as its factorization.

10057212521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 26.

Adding to 10057212521 its reverse (12521275001), we get a palindrome (22578487522).

The spelling of 10057212521 in words is "ten billion, fifty-seven million, two hundred twelve thousand, five hundred twenty-one".