224926852421 has 2 divisors, whose sum is σ = 224926852422. Its totient is φ = 224926852420.

The previous prime is 224926852379. The next prime is 224926852499. The reversal of 224926852421 is 124258629422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207103267396 + 17823585025 = 455086^2 + 133505^2 .

It is a cyclic number.

It is not a de Polignac number, because 224926852421 - 2²⁶ = 224859743557 is a prime.

It is a super-2 number, since 2×224926852421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224926852621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112463426210 + 112463426211.

It is an arithmetic number, because the mean of its divisors is an integer number (112463426211).

Almost surely, 2^224926852421 is an apocalyptic number.

It is an amenable number.

224926852421 is a deficient number, since it is larger than the sum of its proper divisors (1).

224926852421 is an equidigital number, since it uses as much as digits as its factorization.

224926852421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1105920, while the sum is 47.

The spelling of 224926852421 in words is "two hundred twenty-four billion, nine hundred twenty-six million, eight hundred fifty-two thousand, four hundred twenty-one".