224012100421 has 4 divisors (see below), whose sum is σ = 224014951552. Its totient is φ = 224009249292.

The previous prime is 224012100413. The next prime is 224012100451. The reversal of 224012100421 is 124001210422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 224012100421 - 2³ = 224012100413 is a prime.

It is a super-2 number, since 2×224012100421² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224012100401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304271 + ... + 1465996.

It is an arithmetic number, because the mean of its divisors is an integer number (56003737888).

Almost surely, 2^224012100421 is an apocalyptic number.

It is an amenable number.

224012100421 is a deficient number, since it is larger than the sum of its proper divisors (2851131).

224012100421 is an equidigital number, since it uses as much as digits as its factorization.

224012100421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2851130.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 224012100421 its reverse (124001210422), we get a palindrome (348013310843).

The spelling of 224012100421 in words is "two hundred twenty-four billion, twelve million, one hundred thousand, four hundred twenty-one".