2421225354221 has 16 divisors (see below), whose sum is σ = 2443153152000. Its totient is φ = 2399412719088.

The previous prime is 2421225354217. The next prime is 2421225354259. The reversal of 2421225354221 is 1224535221242.

It is not a de Polignac number, because 2421225354221 - 2² = 2421225354217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421225354281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56016200 + ... + 56059406.

It is an arithmetic number, because the mean of its divisors is an integer number (152697072000).

Almost surely, 2^{2421225354221} is an apocalyptic number.

It is an amenable number.

2421225354221 is a deficient number, since it is larger than the sum of its proper divisors (21927797779).

2421225354221 is a wasteful number, since it uses less digits than its factorization.

2421225354221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44528.

The product of its digits is 76800, while the sum is 35.

The spelling of 2421225354221 in words is "two trillion, four hundred twenty-one billion, two hundred twenty-five million, three hundred fifty-four thousand, two hundred twenty-one".