222520455 has 12 divisors (see below), whose sum is σ = 385702200. Its totient is φ = 118677552.

The previous prime is 222520453. The next prime is 222520481. The reversal of 222520455 is 554025222.

It is not a de Polignac number, because 222520455 - 2¹ = 222520453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222520453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2472405 + ... + 2472494.

It is an arithmetic number, because the mean of its divisors is an integer number (32141850).

Almost surely, 2^222520455 is an apocalyptic number.

222520455 is a deficient number, since it is larger than the sum of its proper divisors (163181745).

222520455 is a wasteful number, since it uses less digits than its factorization.

222520455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4944910 (or 4944907 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 222520455 is about 14917.1195275764. The cubic root of 222520455 is about 605.9777056138.

Adding to 222520455 its reverse (554025222), we get a palindrome (776545677).

The spelling of 222520455 in words is "two hundred twenty-two million, five hundred twenty thousand, four hundred fifty-five".