222040257 has 8 divisors (see below), whose sum is σ = 296131200. Its totient is φ = 147988080.

The previous prime is 222040253. The next prime is 222040279. The reversal of 222040257 is 752040222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222040257 - 2² = 222040253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222040253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8619 + ... + 22767.

It is an arithmetic number, because the mean of its divisors is an integer number (37016400).

Almost surely, 2^222040257 is an apocalyptic number.

It is an amenable number.

222040257 is a deficient number, since it is larger than the sum of its proper divisors (74090943).

222040257 is a wasteful number, since it uses less digits than its factorization.

222040257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19383.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 222040257 is about 14901.0153009787. The cubic root of 222040257 is about 605.5414927551.

Adding to 222040257 its reverse (752040222), we get a palindrome (974080479).

The spelling of 222040257 in words is "two hundred twenty-two million, forty thousand, two hundred fifty-seven".