12010551101 has 4 divisors (see below), whose sum is σ = 12011202204. Its totient is φ = 12009900000.

The previous prime is 12010551097. The next prime is 12010551181. The reversal of 12010551101 is 10115501021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6512328601 + 5498222500 = 80699^2 + 74150^2 .

It is a cyclic number.

It is not a de Polignac number, because 12010551101 - 2² = 12010551097 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 12010551101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010551181) 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, 297050 + ... + 335051.

It is an arithmetic number, because the mean of its divisors is an integer number (3002800551).

Almost surely, 2^12010551101 is an apocalyptic number.

It is an amenable number.

12010551101 is a deficient number, since it is larger than the sum of its proper divisors (651103).

12010551101 is an equidigital number, since it uses as much as digits as its factorization.

12010551101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651102.

The product of its (nonzero) digits is 50, while the sum is 17.

The spelling of 12010551101 in words is "twelve billion, ten million, five hundred fifty-one thousand, one hundred one".