12010122551 has 4 divisors (see below), whose sum is σ = 13725854352. Its totient is φ = 10294390752.

The previous prime is 12010122529. The next prime is 12010122557. The reversal of 12010122551 is 15522101021.

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

It is a cyclic number.

It is not a de Polignac number, because 12010122551 - 2²² = 12005928247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010122557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 857865890 + ... + 857865903.

It is an arithmetic number, because the mean of its divisors is an integer number (3431463588).

Almost surely, 2^12010122551 is an apocalyptic number.

12010122551 is a deficient number, since it is larger than the sum of its proper divisors (1715731801).

12010122551 is an equidigital number, since it uses as much as digits as its factorization.

12010122551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715731800.

The product of its (nonzero) digits is 200, while the sum is 20.

Adding to 12010122551 its reverse (15522101021), we get a palindrome (27532223572).

The spelling of 12010122551 in words is "twelve billion, ten million, one hundred twenty-two thousand, five hundred fifty-one".