20110120099999 has 8 divisors (see below), whose sum is σ = 20465422595712. Its totient is φ = 19756819309080.

The previous prime is 20110120099991. The next prime is 20110120100029. The reversal of 20110120099999 is 99999002101102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20110120099999 - 2³ = 20110120099991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110120099991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500405929 + ... + 500446114.

It is an arithmetic number, because the mean of its divisors is an integer number (2558177824464).

Almost surely, 2^{20110120099999} is an apocalyptic number.

20110120099999 is a deficient number, since it is larger than the sum of its proper divisors (355302495713).

20110120099999 is a wasteful number, since it uses less digits than its factorization.

20110120099999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000852397.

The product of its (nonzero) digits is 236196, while the sum is 52.

The spelling of 20110120099999 in words is "twenty trillion, one hundred ten billion, one hundred twenty million, ninety-nine thousand, nine hundred ninety-nine".