2121502146115 has 16 divisors (see below), whose sum is σ = 2778463329120. Its totient is φ = 1542230565120.

The previous prime is 2121502146109. The next prime is 2121502146187. The reversal of 2121502146115 is 5116412051212.

It is not a de Polignac number, because 2121502146115 - 2⁵ = 2121502146083 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8375154 + ... + 8624743.

It is an arithmetic number, because the mean of its divisors is an integer number (173653958070).

Almost surely, 2^{2121502146115} is an apocalyptic number.

2121502146115 is a deficient number, since it is larger than the sum of its proper divisors (656961183005).

2121502146115 is a wasteful number, since it uses less digits than its factorization.

2121502146115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17002182.

The product of its (nonzero) digits is 4800, while the sum is 31.

Adding to 2121502146115 its reverse (5116412051212), we get a palindrome (7237914197327).

The spelling of 2121502146115 in words is "two trillion, one hundred twenty-one billion, five hundred two million, one hundred forty-six thousand, one hundred fifteen".