100012111021099 has 4 divisors (see below), whose sum is σ = 100052782886520. Its totient is φ = 99971439155680.

The previous prime is 100012111021013. The next prime is 100012111021169. The reversal of 100012111021099 is 990120111210001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100012111021099 - 2¹⁵ = 100012110988331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100012111024099) 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, 20335929022 + ... + 20335933939.

It is an arithmetic number, because the mean of its divisors is an integer number (25013195721630).

Almost surely, 2^{100012111021099} is an apocalyptic number.

100012111021099 is a deficient number, since it is larger than the sum of its proper divisors (40671865421).

100012111021099 is an equidigital number, since it uses as much as digits as its factorization.

100012111021099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40671865420.

The product of its (nonzero) digits is 324, while the sum is 28.

It can be divided in two parts, 100012 and 111021099, that added together give a palindrome (111121111).

The spelling of 100012111021099 in words is "one hundred trillion, twelve billion, one hundred eleven million, twenty-one thousand, ninety-nine".