12122134212 has 48 divisors (see below), whose sum is σ = 29519360640. Its totient is φ = 3866838528.

The previous prime is 12122134187. The next prime is 12122134237. The reversal of 12122134212 is 21243122121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12122134187) and next prime (12122134237).

It is a super-2 number, since 2×12122134212² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114808 + ... + 193455.

It is an arithmetic number, because the mean of its divisors is an integer number (614986680).

Almost surely, 2^12122134212 is an apocalyptic number.

12122134212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12122134212 is an abundant number, since it is smaller than the sum of its proper divisors (17397226428).

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

12122134212 is a wasteful number, since it uses less digits than its factorization.

12122134212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308412 (or 308410 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

Adding to 12122134212 its reverse (21243122121), we get a palindrome (33365256333).

The spelling of 12122134212 in words is "twelve billion, one hundred twenty-two million, one hundred thirty-four thousand, two hundred twelve".