12122031340 has 24 divisors (see below), whose sum is σ = 25499657232. Its totient is φ = 4840547520.

The previous prime is 12122031319. The next prime is 12122031371. The reversal of 12122031340 is 4313022121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504531 + ... + 528010.

It is an arithmetic number, because the mean of its divisors is an integer number (1062485718).

Almost surely, 2^12122031340 is an apocalyptic number.

12122031340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122031340 is an abundant number, since it is smaller than the sum of its proper divisors (13377625892).

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

12122031340 is a wasteful number, since it uses less digits than its factorization.

12122031340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033137 (or 1033135 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12122031340 its reverse (4313022121), we get a palindrome (16435053461).

The spelling of 12122031340 in words is "twelve billion, one hundred twenty-two million, thirty-one thousand, three hundred forty".