1200025502421 has 8 divisors (see below), whose sum is σ = 1600039418880. Its totient is φ = 800014293792.

The previous prime is 1200025502339. The next prime is 1200025502441. The reversal of 1200025502421 is 1242055200021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1200025502421 - 2²² = 1200021308117 is a prime.

It is a super-2 number, since 2×1200025502421² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200025502391 and 1200025502400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200025502441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 847585 + ... + 1765913.

It is an arithmetic number, because the mean of its divisors is an integer number (200004927360).

Almost surely, 2^{1200025502421} is an apocalyptic number.

It is an amenable number.

1200025502421 is a deficient number, since it is larger than the sum of its proper divisors (400013916459).

1200025502421 is an equidigital number, since it uses as much as digits as its factorization.

1200025502421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353915.

The product of its (nonzero) digits is 1600, while the sum is 24.

The spelling of 1200025502421 in words is "one trillion, two hundred billion, twenty-five million, five hundred two thousand, four hundred twenty-one".