12207338554 has 4 divisors (see below), whose sum is σ = 18311007834. Its totient is φ = 6103669276.

The previous prime is 12207338551. The next prime is 12207338581. The reversal of 12207338554 is 45583370221.

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

It can be written as a sum of positive squares in only one way, i.e., 11135103529 + 1072235025 = 105523^2 + 32745^2 .

It is a super-2 number, since 2×12207338554² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12207338551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3051834637 + ... + 3051834640.

Almost surely, 2^12207338554 is an apocalyptic number.

12207338554 is a deficient number, since it is larger than the sum of its proper divisors (6103669280).

12207338554 is an equidigital number, since it uses as much as digits as its factorization.

12207338554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6103669279.

The product of its (nonzero) digits is 201600, while the sum is 40.

The spelling of 12207338554 in words is "twelve billion, two hundred seven million, three hundred thirty-eight thousand, five hundred fifty-four".