222520481 has 2 divisors, whose sum is σ = 222520482. Its totient is φ = 222520480.

The previous prime is 222520453. The next prime is 222520483. The reversal of 222520481 is 184025222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116100625 + 106419856 = 10775^2 + 10316^2 .

It is a cyclic number.

It is not a de Polignac number, because 222520481 - 2¹⁴ = 222504097 is a prime.

It is a super-3 number, since 3×222520481³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 222520483, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222520481.

It is not a weakly prime, because it can be changed into another prime (222520483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111260240 + 111260241.

It is an arithmetic number, because the mean of its divisors is an integer number (111260241).

Almost surely, 2^222520481 is an apocalyptic number.

It is an amenable number.

222520481 is a deficient number, since it is larger than the sum of its proper divisors (1).

222520481 is an equidigital number, since it uses as much as digits as its factorization.

222520481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 222520481 is about 14917.1203990583. The cubic root of 222520481 is about 605.9777292153.

The spelling of 222520481 in words is "two hundred twenty-two million, five hundred twenty thousand, four hundred eighty-one".