12200975551 has 4 divisors (see below), whose sum is σ = 12208569552. Its totient is φ = 12193381552.

The previous prime is 12200975491. The next prime is 12200975561. The reversal of 12200975551 is 15557900221.

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 12200975551 - 2¹¹ = 12200973503 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 12200975551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200975561) 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, 3794590 + ... + 3797803.

It is an arithmetic number, because the mean of its divisors is an integer number (3052142388).

Almost surely, 2^12200975551 is an apocalyptic number.

12200975551 is a deficient number, since it is larger than the sum of its proper divisors (7594001).

12200975551 is an equidigital number, since it uses as much as digits as its factorization.

12200975551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7594000.

The product of its (nonzero) digits is 31500, while the sum is 37.

The spelling of 12200975551 in words is "twelve billion, two hundred million, nine hundred seventy-five thousand, five hundred fifty-one".