10012120111055 has 4 divisors (see below), whose sum is σ = 12014544133272. Its totient is φ = 8009696088840.

The previous prime is 10012120111027. The next prime is 10012120111061. The reversal of 10012120111055 is 55011102121001.

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

It is not a de Polignac number, because 10012120111055 - 2²⁰ = 10012119062479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001212011101 + ... + 1001212011110.

It is an arithmetic number, because the mean of its divisors is an integer number (3003636033318).

Almost surely, 2^{10012120111055} is an apocalyptic number.

10012120111055 is a deficient number, since it is larger than the sum of its proper divisors (2002424022217).

10012120111055 is an equidigital number, since it uses as much as digits as its factorization.

10012120111055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2002424022216.

The product of its (nonzero) digits is 100, while the sum is 20.

Adding to 10012120111055 its reverse (55011102121001), we get a palindrome (65023222232056).

The spelling of 10012120111055 in words is "ten trillion, twelve billion, one hundred twenty million, one hundred eleven thousand, fifty-five".