100111002010121 has 4 divisors (see below), whose sum is σ = 100111149699792. Its totient is φ = 100110854320452.

The previous prime is 100111002010093. The next prime is 100111002010169. The reversal of 100111002010121 is 121010200111001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100111002010121 - 2⁴⁶ = 29742257832457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100111002010421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72823355 + ... + 74185328.

It is an arithmetic number, because the mean of its divisors is an integer number (25027787424948).

Almost surely, 2^{100111002010121} is an apocalyptic number.

It is an amenable number.

100111002010121 is a deficient number, since it is larger than the sum of its proper divisors (147689671).

100111002010121 is an equidigital number, since it uses as much as digits as its factorization.

100111002010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147689670.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 100111002010121 its reverse (121010200111001), we get a palindrome (221121202121122).

The spelling of 100111002010121 in words is "one hundred trillion, one hundred eleven billion, two million, ten thousand, one hundred twenty-one".