2010000122521 has 2 divisors, whose sum is σ = 2010000122522. Its totient is φ = 2010000122520.

The previous prime is 2010000122519. The next prime is 2010000122563. The reversal of 2010000122521 is 1252210000102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1729656346896 + 280343775625 = 1315164^2 + 529475^2 .

It is a cyclic number.

It is not a de Polignac number, because 2010000122521 - 2¹ = 2010000122519 is a prime.

It is a super-2 number, since 2×2010000122521² (a number of 25 digits) contains 22 as substring.

Together with 2010000122519, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2010000122495 and 2010000122504.

It is not a weakly prime, because it can be changed into another prime (2010000122621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005000061260 + 1005000061261.

It is an arithmetic number, because the mean of its divisors is an integer number (1005000061261).

Almost surely, 2^{2010000122521} is an apocalyptic number.

It is an amenable number.

2010000122521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010000122521 is an equidigital number, since it uses as much as digits as its factorization.

2010000122521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 2010000122521 its reverse (1252210000102), we get a palindrome (3262210122623).

The spelling of 2010000122521 in words is "two trillion, ten billion, one hundred twenty-two thousand, five hundred twenty-one".