12327775122 has 64 divisors (see below), whose sum is σ = 27227975040. Its totient is φ = 3696806400.

The previous prime is 12327775121. The next prime is 12327775123. The reversal of 12327775122 is 22157772321.

It is an interprime number because it is at equal distance from previous prime (12327775121) and next prime (12327775123).

It is a super-2 number, since 2×12327775122² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (12327775121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5176372 + ... + 5178752.

It is an arithmetic number, because the mean of its divisors is an integer number (425437110).

Almost surely, 2^12327775122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12327775122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13613987520).

12327775122 is an abundant number, since it is smaller than the sum of its proper divisors (14900199918).

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

12327775122 is a wasteful number, since it uses less digits than its factorization.

12327775122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059.

The product of its digits is 82320, while the sum is 39.

The spelling of 12327775122 in words is "twelve billion, three hundred twenty-seven million, seven hundred seventy-five thousand, one hundred twenty-two".