2120012254400 has 168 divisors, whose sum is σ = 5525250240816. Its totient is φ = 797856563200.

The previous prime is 2120012254397. The next prime is 2120012254489. The reversal of 2120012254400 is 44522100212.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94291160 + ... + 94313640.

Almost surely, 2^{2120012254400} is an apocalyptic number.

2120012254400 is a gapful number since it is divisible by the number (20) 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 2120012254400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2762625120408).

2120012254400 is an abundant number, since it is smaller than the sum of its proper divisors (3405237986416).

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

2120012254400 is a wasteful number, since it uses less digits than its factorization.

2120012254400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25987 (or 25972 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

Adding to 2120012254400 its reverse (44522100212), we get a palindrome (2164534354612).

The spelling of 2120012254400 in words is "two trillion, one hundred twenty billion, twelve million, two hundred fifty-four thousand, four hundred".