100111121210995 has 16 divisors (see below), whose sum is σ = 121197478862592. Its totient is φ = 79380960403680.

The previous prime is 100111121210977. The next prime is 100111121211029. The reversal of 100111121210995 is 599012121111001.

It is not a de Polignac number, because 100111121210995 - 2⁹ = 100111121210483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100111121210995.

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, 92317197 + ... + 93395326.

It is an arithmetic number, because the mean of its divisors is an integer number (7574842428912).

Almost surely, 2^{100111121210995} is an apocalyptic number.

100111121210995 is a deficient number, since it is larger than the sum of its proper divisors (21086357651597).

100111121210995 is a wasteful number, since it uses less digits than its factorization.

100111121210995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185713482.

The product of its (nonzero) digits is 1620, while the sum is 34.

Adding to 100111121210995 its reverse (599012121111001), we get a palindrome (699123242321996).

The spelling of 100111121210995 in words is "one hundred trillion, one hundred eleven billion, one hundred twenty-one million, two hundred ten thousand, nine hundred ninety-five".