224624426421 has 16 divisors (see below), whose sum is σ = 299780352000. Its totient is φ = 149609132400.

The previous prime is 224624426339. The next prime is 224624426441. The reversal of 224624426421 is 124624426422.

It is not a de Polignac number, because 224624426421 - 2¹¹ = 224624424373 is a prime.

It is a super-2 number, since 2×224624426421² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 224624426421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224624426441) 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, 16633330 + ... + 16646828.

It is an arithmetic number, because the mean of its divisors is an integer number (18736272000).

Almost surely, 2^224624426421 is an apocalyptic number.

It is an amenable number.

224624426421 is a deficient number, since it is larger than the sum of its proper divisors (75155925579).

224624426421 is a wasteful number, since it uses less digits than its factorization.

224624426421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18296.

The product of its digits is 294912, while the sum is 39.

Subtracting from 224624426421 its reverse (124624426422), we obtain a palindrome (99999999999).

The spelling of 224624426421 in words is "two hundred twenty-four billion, six hundred twenty-four million, four hundred twenty-six thousand, four hundred twenty-one".