222245523 has 6 divisors (see below), whose sum is σ = 321021324. Its totient is φ = 148163676.

The previous prime is 222245501. The next prime is 222245537. The reversal of 222245523 is 325542222.

It is not a de Polignac number, because 222245523 - 2⁶ = 222245459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222245423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12346965 + ... + 12346982.

It is an arithmetic number, because the mean of its divisors is an integer number (53503554).

Almost surely, 2^222245523 is an apocalyptic number.

222245523 is a deficient number, since it is larger than the sum of its proper divisors (98775801).

222245523 is a wasteful number, since it uses less digits than its factorization.

222245523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24693953 (or 24693950 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 222245523 is about 14907.9013613587. The cubic root of 222245523 is about 605.7280336991.

Adding to 222245523 its reverse (325542222), we get a palindrome (547787745).

The spelling of 222245523 in words is "two hundred twenty-two million, two hundred forty-five thousand, five hundred twenty-three".