12010206551 has 4 divisors (see below), whose sum is σ = 13725950352. Its totient is φ = 10294462752.

The previous prime is 12010206511. The next prime is 12010206577. The reversal of 12010206551 is 15560201021.

It is a happy number.

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

It is not a de Polignac number, because 12010206551 - 2⁶ = 12010206487 is a prime.

It is a super-2 number, since 2×12010206551² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12010206511) 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, 857871890 + ... + 857871903.

It is an arithmetic number, because the mean of its divisors is an integer number (3431487588).

Almost surely, 2^12010206551 is an apocalyptic number.

12010206551 is a deficient number, since it is larger than the sum of its proper divisors (1715743801).

12010206551 is an equidigital number, since it uses as much as digits as its factorization.

12010206551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715743800.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 12010206551 its reverse (15560201021), we get a palindrome (27570407572).

The spelling of 12010206551 in words is "twelve billion, ten million, two hundred six thousand, five hundred fifty-one".