2521112020244 has 6 divisors (see below), whose sum is σ = 4411946035434. Its totient is φ = 1260556010120.

The previous prime is 2521112020237. The next prime is 2521112020261. The reversal of 2521112020244 is 4420202111252.

It can be written as a sum of positive squares in only one way, i.e., 2218818784900 + 302293235344 = 1489570^2 + 549812^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315139002527 + ... + 315139002534.

It is an arithmetic number, because the mean of its divisors is an integer number (735324339239).

Almost surely, 2^{2521112020244} is an apocalyptic number.

It is an amenable number.

2521112020244 is a deficient number, since it is larger than the sum of its proper divisors (1890834015190).

2521112020244 is a wasteful number, since it uses less digits than its factorization.

2521112020244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630278005065 (or 630278005063 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 2521112020244 its reverse (4420202111252), we get a palindrome (6941314131496).

The spelling of 2521112020244 in words is "two trillion, five hundred twenty-one billion, one hundred twelve million, twenty thousand, two hundred forty-four".