222030997 has 4 divisors (see below), whose sum is σ = 222072300. Its totient is φ = 221989696.

The previous prime is 222030971. The next prime is 222031013. The reversal of 222030997 is 799030222.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46362481 + 175668516 = 6809^2 + 13254^2 .

It is a cyclic number.

It is not a de Polignac number, because 222030997 - 2²³ = 213642389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222030917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11122 + ... + 23827.

It is an arithmetic number, because the mean of its divisors is an integer number (55518075).

Almost surely, 2^222030997 is an apocalyptic number.

It is an amenable number.

222030997 is a deficient number, since it is larger than the sum of its proper divisors (41303).

222030997 is an equidigital number, since it uses as much as digits as its factorization.

222030997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41302.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 222030997 is about 14900.7045806566. The cubic root of 222030997 is about 605.5330747739.

The spelling of 222030997 in words is "two hundred twenty-two million, thirty thousand, nine hundred ninety-seven".