215100969242 has 16 divisors (see below), whose sum is σ = 338424246720. Its totient is φ = 102341344512.

The previous prime is 215100969227. The next prime is 215100969253. The reversal of 215100969242 is 242969001512.

It is a self number, because there is not a number n which added to its sum of digits gives 215100969242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12105392 + ... + 12123147.

It is an arithmetic number, because the mean of its divisors is an integer number (21151515420).

Almost surely, 2^215100969242 is an apocalyptic number.

215100969242 is a deficient number, since it is larger than the sum of its proper divisors (123323277478).

215100969242 is a wasteful number, since it uses less digits than its factorization.

215100969242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24228757.

The product of its (nonzero) digits is 77760, while the sum is 41.

The spelling of 215100969242 in words is "two hundred fifteen billion, one hundred million, nine hundred sixty-nine thousand, two hundred forty-two".