222501399 has 8 divisors (see below), whose sum is σ = 298075392. Its totient is φ = 147630840.

The previous prime is 222501397. The next prime is 222501403. The reversal of 222501399 is 993105222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222501399 - 2¹ = 222501397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222501397) 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 7 ways as a sum of consecutive naturals, for example, 175119 + ... + 176384.

It is an arithmetic number, because the mean of its divisors is an integer number (37259424).

Almost surely, 2^222501399 is an apocalyptic number.

222501399 is a deficient number, since it is larger than the sum of its proper divisors (75573993).

222501399 is a wasteful number, since it uses less digits than its factorization.

222501399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351717.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 222501399 is about 14916.4807846891. The cubic root of 222501399 is about 605.9604070681.

The spelling of 222501399 in words is "two hundred twenty-two million, five hundred one thousand, three hundred ninety-nine".