222545122 has 4 divisors (see below), whose sum is σ = 333817686. Its totient is φ = 111272560.

The previous prime is 222545053. The next prime is 222545137. The reversal of 222545122 is 221545222.

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

It can be written as a sum of positive squares in only one way, i.e., 208773601 + 13771521 = 14449^2 + 3711^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55636279 + ... + 55636282.

Almost surely, 2^222545122 is an apocalyptic number.

222545122 is a deficient number, since it is larger than the sum of its proper divisors (111272564).

222545122 is a wasteful number, since it uses less digits than its factorization.

222545122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111272563.

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

The square root of 222545122 is about 14917.9463063788. The cubic root of 222545122 is about 606.0000962142. Note that the first 4 decimals are identical.

The spelling of 222545122 in words is "two hundred twenty-two million, five hundred forty-five thousand, one hundred twenty-two".