2512121023242 has 24 divisors (see below), whose sum is σ = 5444102868516. Its totient is φ = 837193061376.

The previous prime is 2512121023189. The next prime is 2512121023309. The reversal of 2512121023242 is 2423201212152.

2512121023242 is a `hidden beast` number, since 2 + 5 + 121 + 210 + 2 + 324 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1928762662401 + 583358360841 = 1388799^2 + 763779^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14965303 + ... + 15132234.

Almost surely, 2^{2512121023242} is an apocalyptic number.

2512121023242 is an abundant number, since it is smaller than the sum of its proper divisors (2931981845274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2512121023242 is a wasteful number, since it uses less digits than its factorization.

2512121023242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30102182 (or 30102179 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 2512121023242 its reverse (2423201212152), we get a palindrome (4935322235394).

The spelling of 2512121023242 in words is "two trillion, five hundred twelve billion, one hundred twenty-one million, twenty-three thousand, two hundred forty-two".