222355345 has 4 divisors (see below), whose sum is σ = 266826420. Its totient is φ = 177884272.

The previous prime is 222355337. The next prime is 222355349. The reversal of 222355345 is 543553222.

222355345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 78163281 + 144192064 = 8841^2 + 12008^2 .

It is a cyclic number.

It is not a de Polignac number, because 222355345 - 2³ = 222355337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222355349) 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, 22235530 + ... + 22235539.

It is an arithmetic number, because the mean of its divisors is an integer number (66706605).

Almost surely, 2^222355345 is an apocalyptic number.

It is an amenable number.

222355345 is a deficient number, since it is larger than the sum of its proper divisors (44471075).

222355345 is an equidigital number, since it uses as much as digits as its factorization.

222355345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44471074.

The product of its digits is 36000, while the sum is 31.

The square root of 222355345 is about 14911.5842552024. The cubic root of 222355345 is about 605.8277902040.

The spelling of 222355345 in words is "two hundred twenty-two million, three hundred fifty-five thousand, three hundred forty-five".