222605843 has 4 divisors (see below), whose sum is σ = 234321960. Its totient is φ = 210889728.

The previous prime is 222605833. The next prime is 222605857. The reversal of 222605843 is 348506222.

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

It is a cyclic number.

It is not a de Polignac number, because 222605843 - 2¹⁴ = 222589459 is a prime.

It is a super-2 number, since 2×222605843² = 99106722675481298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222605833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5858030 + ... + 5858067.

It is an arithmetic number, because the mean of its divisors is an integer number (58580490).

Almost surely, 2^222605843 is an apocalyptic number.

222605843 is a deficient number, since it is larger than the sum of its proper divisors (11716117).

222605843 is a wasteful number, since it uses less digits than its factorization.

222605843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11716116.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 222605843 is about 14919.9813337685. The cubic root of 222605843 is about 606.0552065148.

The spelling of 222605843 in words is "two hundred twenty-two million, six hundred five thousand, eight hundred forty-three".