105212402515 has 16 divisors (see below), whose sum is σ = 138502068480. Its totient is φ = 76090628320.

The previous prime is 105212402461. The next prime is 105212402531. The reversal of 105212402515 is 515204212501.

It is a de Polignac number, because none of the positive numbers 2^k-105212402515 is a prime.

It is a super-2 number, since 2×105212402515² (a number of 23 digits) contains 22 as substring.

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, 5333599 + ... + 5353288.

It is an arithmetic number, because the mean of its divisors is an integer number (8656379280).

Almost surely, 2^105212402515 is an apocalyptic number.

105212402515 is a deficient number, since it is larger than the sum of its proper divisors (33289665965).

105212402515 is a wasteful number, since it uses less digits than its factorization.

105212402515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10687082.

The product of its (nonzero) digits is 4000, while the sum is 28.

The spelling of 105212402515 in words is "one hundred five billion, two hundred twelve million, four hundred two thousand, five hundred fifteen".