12204110323551 has 4 divisors (see below), whose sum is σ = 16272147098072. Its totient is φ = 8136073549032.

The previous prime is 12204110323499. The next prime is 12204110323577. The reversal of 12204110323551 is 15532301140221.

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 12204110323551 - 2⁷ = 12204110323423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12204110325551) 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, 2034018387256 + ... + 2034018387261.

It is an arithmetic number, because the mean of its divisors is an integer number (4068036774518).

Almost surely, 2^{12204110323551} is an apocalyptic number.

12204110323551 is a deficient number, since it is larger than the sum of its proper divisors (4068036774521).

12204110323551 is an equidigital number, since it uses as much as digits as its factorization.

12204110323551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4068036774520.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 12204110323551 its reverse (15532301140221), we get a palindrome (27736411463772).

The spelling of 12204110323551 in words is "twelve trillion, two hundred four billion, one hundred ten million, three hundred twenty-three thousand, five hundred fifty-one".