224521121524139 has 4 divisors (see below), whose sum is σ = 244932132571800. Its totient is φ = 204110110476480.

The previous prime is 224521121524109. The next prime is 224521121524171. The reversal of 224521121524139 is 931425121125422.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 224521121524139 - 2³⁶ = 224452402047403 is a prime.

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 224521121524139.

It is not an unprimeable number, because it can be changed into a prime (224521121524109) 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, 10205505523814 + ... + 10205505523835.

It is an arithmetic number, because the mean of its divisors is an integer number (61233033142950).

Almost surely, 2^{224521121524139} is an apocalyptic number.

224521121524139 is a deficient number, since it is larger than the sum of its proper divisors (20411011047661).

224521121524139 is a wasteful number, since it uses less digits than its factorization.

224521121524139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20411011047660.

The product of its digits is 345600, while the sum is 44.

The spelling of 224521121524139 in words is "two hundred twenty-four trillion, five hundred twenty-one billion, one hundred twenty-one million, five hundred twenty-four thousand, one hundred thirty-nine".