12277732422 has 32 divisors (see below), whose sum is σ = 25632582624. Its totient is φ = 3916684800.

The previous prime is 12277732409. The next prime is 12277732427. The reversal of 12277732422 is 22423777221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12277732427) 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 in 15 ways as a sum of consecutive naturals, for example, 439779 + ... + 466862.

It is an arithmetic number, because the mean of its divisors is an integer number (801018207).

Almost surely, 2^12277732422 is an apocalyptic number.

12277732422 is an abundant number, since it is smaller than the sum of its proper divisors (13354850202).

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

12277732422 is a wasteful number, since it uses less digits than its factorization.

12277732422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906744.

The product of its digits is 131712, while the sum is 39.

The spelling of 12277732422 in words is "twelve billion, two hundred seventy-seven million, seven hundred thirty-two thousand, four hundred twenty-two".