222122545 has 16 divisors (see below), whose sum is σ = 269222400. Its totient is φ = 175924224.

The previous prime is 222122473. The next prime is 222122557. The reversal of 222122545 is 545221222.

222122545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 222122545 - 2¹⁹ = 221598257 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365632 + ... + 366238.

It is an arithmetic number, because the mean of its divisors is an integer number (16826400).

Almost surely, 2^222122545 is an apocalyptic number.

It is an amenable number.

222122545 is a deficient number, since it is larger than the sum of its proper divisors (47099855).

222122545 is a wasteful number, since it uses less digits than its factorization.

222122545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224.

The product of its digits is 3200, while the sum is 25.

The square root of 222122545 is about 14903.7761993395. The cubic root of 222122545 is about 605.6162879669.

Adding to 222122545 its reverse (545221222), we get a palindrome (767343767).

The spelling of 222122545 in words is "two hundred twenty-two million, one hundred twenty-two thousand, five hundred forty-five".