12420134202000 has 320 divisors, whose sum is σ = 45768718614528. Its totient is φ = 2838525120000.

The previous prime is 12420134201963. The next prime is 12420134202013. The reversal of 12420134202000 is 20243102421.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 464968645 + ... + 464995355.

Almost surely, 2^{12420134202000} is an apocalyptic number.

12420134202000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12420134202000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22884359307264).

12420134202000 is an abundant number, since it is smaller than the sum of its proper divisors (33348584412528).

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

12420134202000 is a wasteful number, since it uses less digits than its factorization.

12420134202000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37815 (or 37799 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12420134202000 its reverse (20243102421), we get a palindrome (12440377304421).

The spelling of 12420134202000 in words is "twelve trillion, four hundred twenty billion, one hundred thirty-four million, two hundred two thousand".