520224122381 has 2 divisors, whose sum is σ = 520224122382. Its totient is φ = 520224122380.

The previous prime is 520224122377. The next prime is 520224122423. The reversal of 520224122381 is 183221422025.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 508155122500 + 12068999881 = 712850^2 + 109859^2 .

It is a cyclic number.

It is not a de Polignac number, because 520224122381 - 2² = 520224122377 is a prime.

It is a super-2 number, since 2×520224122381² (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 (520224122311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260112061190 + 260112061191.

It is an arithmetic number, because the mean of its divisors is an integer number (260112061191).

Almost surely, 2^520224122381 is an apocalyptic number.

It is an amenable number.

520224122381 is a deficient number, since it is larger than the sum of its proper divisors (1).

520224122381 is an equidigital number, since it uses as much as digits as its factorization.

520224122381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 32.

The spelling of 520224122381 in words is "five hundred twenty billion, two hundred twenty-four million, one hundred twenty-two thousand, three hundred eighty-one".