222738311 has 8 divisors (see below), whose sum is σ = 239450880. Its totient is φ = 206524728.

The previous prime is 222738293. The next prime is 222738331. The reversal of 222738311 is 113837222.

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 222738311 - 2¹⁰ = 222737287 is a prime.

It is a super-2 number, since 2×222738311² = 99224710374265442, 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 (222738331) 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, 123821 + ... + 125606.

It is an arithmetic number, because the mean of its divisors is an integer number (29931360).

Almost surely, 2^222738311 is an apocalyptic number.

222738311 is a deficient number, since it is larger than the sum of its proper divisors (16712569).

222738311 is a wasteful number, since it uses less digits than its factorization.

222738311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249493.

The product of its digits is 4032, while the sum is 29.

The square root of 222738311 is about 14924.4199552277. The cubic root of 222738311 is about 606.1753995286.

The spelling of 222738311 in words is "two hundred twenty-two million, seven hundred thirty-eight thousand, three hundred eleven".