12010120011 has 6 divisors (see below), whose sum is σ = 17347951140. Its totient is φ = 8006746668.

The previous prime is 12010119977. The next prime is 12010120079. The reversal of 12010120011 is 11002101021.

It is a happy number.

It is not a de Polignac number, because 12010120011 - 2¹⁴ = 12010103627 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1334457779 = 12010120011 / (1 + 2 + 0 + 1 + 0 + 1 + 2 + 0 + 0 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 12010119975 and 12010120002.

It is not an unprimeable number, because it can be changed into a prime (12010120411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 667228881 + ... + 667228898.

It is an arithmetic number, because the mean of its divisors is an integer number (2891325190).

Almost surely, 2^12010120011 is an apocalyptic number.

12010120011 is a deficient number, since it is larger than the sum of its proper divisors (5337831129).

12010120011 is a wasteful number, since it uses less digits than its factorization.

12010120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334457785 (or 1334457782 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12010120011 its reverse (11002101021), we get a palindrome (23012221032).

The spelling of 12010120011 in words is "twelve billion, ten million, one hundred twenty thousand, eleven".