222774919 has 8 divisors (see below), whose sum is σ = 236070720. Its totient is φ = 209500416.

The previous prime is 222774913. The next prime is 222774931. The reversal of 222774919 is 919477222.

222774919 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 222774919 - 2¹⁹ = 222250631 is a prime.

It is a super-2 number, since 2×222774919² = 99257329070913122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222774913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19587 + ... + 28795.

It is an arithmetic number, because the mean of its divisors is an integer number (29508840).

Almost surely, 2^222774919 is an apocalyptic number.

222774919 is a deficient number, since it is larger than the sum of its proper divisors (13295801).

222774919 is a wasteful number, since it uses less digits than its factorization.

222774919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10649.

The product of its digits is 127008, while the sum is 43.

The square root of 222774919 is about 14925.6463511635. The cubic root of 222774919 is about 606.2086068880.

The spelling of 222774919 in words is "two hundred twenty-two million, seven hundred seventy-four thousand, nine hundred nineteen".