100120002121192 has 16 divisors (see below), whose sum is σ = 194198279976900. Its totient is φ = 48333794127360.

The previous prime is 100120002121147. The next prime is 100120002121193. The reversal of 100120002121192 is 291121200021001.

It can be written as a sum of positive squares in 2 ways, for example, as 88204291857796 + 11915710263396 = 9391714^2 + 3451914^2 .

It is not an unprimeable number, because it can be changed into a prime (100120002121193) 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, 215775866409 + ... + 215775866872.

Almost surely, 2^{100120002121192} is an apocalyptic number.

It is an amenable number.

100120002121192 is a deficient number, since it is larger than the sum of its proper divisors (94078277855708).

100120002121192 is a wasteful number, since it uses less digits than its factorization.

100120002121192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431551733316 (or 431551733312 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 22.

Adding to 100120002121192 its reverse (291121200021001), we get a palindrome (391241202142193).

The spelling of 100120002121192 in words is "one hundred trillion, one hundred twenty billion, two million, one hundred twenty-one thousand, one hundred ninety-two".