2471522423021 has 2 divisors, whose sum is σ = 2471522423022. Its totient is φ = 2471522423020.

The previous prime is 2471522423003. The next prime is 2471522423063. The reversal of 2471522423021 is 1203242251742.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1818317402500 + 653205020521 = 1348450^2 + 808211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2471522423021 is a prime.

It is a super-2 number, since 2×2471522423021² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2471522423221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1235761211510 + 1235761211511.

It is an arithmetic number, because the mean of its divisors is an integer number (1235761211511).

Almost surely, 2^{2471522423021} is an apocalyptic number.

It is an amenable number.

2471522423021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2471522423021 is an equidigital number, since it uses as much as digits as its factorization.

2471522423021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 35.

Adding to 2471522423021 its reverse (1203242251742), we get a palindrome (3674764674763).

The spelling of 2471522423021 in words is "two trillion, four hundred seventy-one billion, five hundred twenty-two million, four hundred twenty-three thousand, twenty-one".