99119920901 has 4 divisors (see below), whose sum is σ = 99120801900. Its totient is φ = 99119039904.

The previous prime is 99119920891. The next prime is 99119920909. The reversal of 99119920901 is 10902991199.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 59309296225 + 39810624676 = 243535^2 + 199526^2 .

It is a cyclic number.

It is not a de Polignac number, because 99119920901 - 2¹⁴ = 99119904517 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 99119920901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99119920909) 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, 241886 + ... + 506703.

It is an arithmetic number, because the mean of its divisors is an integer number (24780200475).

Almost surely, 2^99119920901 is an apocalyptic number.

It is an amenable number.

99119920901 is a deficient number, since it is larger than the sum of its proper divisors (880999).

99119920901 is a wasteful number, since it uses less digits than its factorization.

99119920901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880998.

The product of its (nonzero) digits is 118098, while the sum is 50.

The spelling of 99119920901 in words is "ninety-nine billion, one hundred nineteen million, nine hundred twenty thousand, nine hundred one".