222245111 has 4 divisors (see below), whose sum is σ = 242449224. Its totient is φ = 202041000.

The previous prime is 222245083. The next prime is 222245129. The reversal of 222245111 is 111542222.

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 222245111 - 2¹⁸ = 221982967 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 (222245311) 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, 10102040 + ... + 10102061.

It is an arithmetic number, because the mean of its divisors is an integer number (60612306).

Almost surely, 2^222245111 is an apocalyptic number.

222245111 is a deficient number, since it is larger than the sum of its proper divisors (20204113).

222245111 is a wasteful number, since it uses less digits than its factorization.

222245111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20204112.

The product of its digits is 320, while the sum is 20.

The square root of 222245111 is about 14907.8875431766. The cubic root of 222245111 is about 605.7276593982.

Adding to 222245111 its reverse (111542222), we get a palindrome (333787333).

The spelling of 222245111 in words is "two hundred twenty-two million, two hundred forty-five thousand, one hundred eleven".