2111516212125 has 64 divisors (see below), whose sum is σ = 3606512532480. Its totient is φ = 1096707291200.

The previous prime is 2111516212111. The next prime is 2111516212151. The reversal of 2111516212125 is 5212126151112.

It is not a de Polignac number, because 2111516212125 - 2⁴ = 2111516212109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2111516212092 and 2111516212101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1921414 + ... + 2813336.

It is an arithmetic number, because the mean of its divisors is an integer number (56351758320).

Almost surely, 2^{2111516212125} is an apocalyptic number.

2111516212125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2111516212125 is a deficient number, since it is larger than the sum of its proper divisors (1494996320355).

2111516212125 is a wasteful number, since it uses less digits than its factorization.

2111516212125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892107 (or 892097 counting only the distinct ones).

The product of its digits is 2400, while the sum is 30.

The spelling of 2111516212125 in words is "two trillion, one hundred eleven billion, five hundred sixteen million, two hundred twelve thousand, one hundred twenty-five".