2012040012400 has 60 divisors (see below), whose sum is σ = 5273373971304. Its totient is φ = 731650912000.

The previous prime is 2012040012347. The next prime is 2012040012413. The reversal of 2012040012400 is 42100402102.

It is a super-2 number, since 2×2012040012400² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 228636511 + ... + 228645310.

Almost surely, 2^{2012040012400} is an apocalyptic number.

2012040012400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2012040012400 is an abundant number, since it is smaller than the sum of its proper divisors (3261333958904).

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

2012040012400 is a wasteful number, since it uses less digits than its factorization.

2012040012400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457281850 (or 457281839 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 2012040012400 its reverse (42100402102), we get a palindrome (2054140414502).

The spelling of 2012040012400 in words is "two trillion, twelve billion, forty million, twelve thousand, four hundred".