12265780122 has 12 divisors (see below), whose sum is σ = 26575856970. Its totient is φ = 4088593368.

The previous prime is 12265780039. The next prime is 12265780133. The reversal of 12265780122 is 22108756221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 11629681281 + 636098841 = 107841^2 + 25221^2 .

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 340716097 + ... + 340716132.

Almost surely, 2^12265780122 is an apocalyptic number.

12265780122 is an abundant number, since it is smaller than the sum of its proper divisors (14310076848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12265780122 is a wasteful number, since it uses less digits than its factorization.

12265780122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681432237 (or 681432234 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 12265780122 in words is "twelve billion, two hundred sixty-five million, seven hundred eighty thousand, one hundred twenty-two".