12122112143400 has 192 divisors, whose sum is σ = 45473200778880. Its totient is φ = 2607782092800.

The previous prime is 12122112143329. The next prime is 12122112143419. The reversal of 12122112143400 is 434121122121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84817341 + ... + 84960140.

It is an arithmetic number, because the mean of its divisors is an integer number (236839587390).

Almost surely, 2^{12122112143400} is an apocalyptic number.

12122112143400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12122112143400 is an abundant number, since it is smaller than the sum of its proper divisors (33351088635480).

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

12122112143400 is a wasteful number, since it uses less digits than its factorization.

12122112143400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169777524 (or 169777515 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

Adding to 12122112143400 its reverse (434121122121), we get a palindrome (12556233265521).

The spelling of 12122112143400 in words is "twelve trillion, one hundred twenty-two billion, one hundred twelve million, one hundred forty-three thousand, four hundred".