12122340822 has 64 divisors (see below), whose sum is σ = 28381536000. Its totient is φ = 3824708544.

The previous prime is 12122340767. The next prime is 12122340827. The reversal of 12122340822 is 22804322121.

12122340822 is a `hidden beast` number, since 1 + 212 + 23 + 408 + 22 = 666.

It is a super-2 number, since 2×12122340822² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122340827) 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, 1311754 + ... + 1320962.

It is an arithmetic number, because the mean of its divisors is an integer number (443461500).

Almost surely, 2^12122340822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12122340822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14190768000).

12122340822 is an abundant number, since it is smaller than the sum of its proper divisors (16259195178).

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

12122340822 is a wasteful number, since it uses less digits than its factorization.

12122340822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10522 (or 10516 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 12122340822 its reverse (22804322121), we get a palindrome (34926662943).

The spelling of 12122340822 in words is "twelve billion, one hundred twenty-two million, three hundred forty thousand, eight hundred twenty-two".