21052671245701 has 2 divisors, whose sum is σ = 21052671245702. Its totient is φ = 21052671245700.

The previous prime is 21052671245687. The next prime is 21052671245719. The reversal of 21052671245701 is 10754217625012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20693901393025 + 358769852676 = 4549055^2 + 598974^2 .

It is a cyclic number.

It is not a de Polignac number, because 21052671245701 - 2⁹ = 21052671245189 is a prime.

It is a super-2 number, since 2×21052671245701² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21052671245101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10526335622850 + 10526335622851.

It is an arithmetic number, because the mean of its divisors is an integer number (10526335622851).

Almost surely, 2^{21052671245701} is an apocalyptic number.

It is an amenable number.

21052671245701 is a deficient number, since it is larger than the sum of its proper divisors (1).

21052671245701 is an equidigital number, since it uses as much as digits as its factorization.

21052671245701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 21052671245701 in words is "twenty-one trillion, fifty-two billion, six hundred seventy-one million, two hundred forty-five thousand, seven hundred one".