224357333421 has 16 divisors (see below), whose sum is σ = 322380590336. Its totient is φ = 137968992576.

The previous prime is 224357333401. The next prime is 224357333423. The reversal of 224357333421 is 124333753422.

It is not a de Polignac number, because 224357333421 - 2²¹ = 224355236269 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 224357333421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224357333423) 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, 1965850 + ... + 2076843.

It is an arithmetic number, because the mean of its divisors is an integer number (20148786896).

Almost surely, 2^224357333421 is an apocalyptic number.

It is an amenable number.

224357333421 is a deficient number, since it is larger than the sum of its proper divisors (98023256915).

224357333421 is a wasteful number, since it uses less digits than its factorization.

224357333421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4044132.

The product of its digits is 362880, while the sum is 39.

The spelling of 224357333421 in words is "two hundred twenty-four billion, three hundred fifty-seven million, three hundred thirty-three thousand, four hundred twenty-one".