100120012192 has 24 divisors (see below), whose sum is σ = 197140956516. Its totient is φ = 50052467712.

The previous prime is 100120012171. The next prime is 100120012271. The reversal of 100120012192 is 291210021001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 92292009616 + 7828002576 = 303796^2 + 88476^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16623 + ... + 447790.

Almost surely, 2^100120012192 is an apocalyptic number.

It is an amenable number.

100120012192 is a deficient number, since it is larger than the sum of its proper divisors (97020944324).

100120012192 is an equidigital number, since it uses as much as digits as its factorization.

100120012192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471160 (or 471152 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 100120012192 its reverse (291210021001), we get a palindrome (391330033193).

The spelling of 100120012192 in words is "one hundred billion, one hundred twenty million, twelve thousand, one hundred ninety-two".