1138222 has 4 divisors (see below), whose sum is σ = 1707336. Its totient is φ = 569110.

The previous prime is 1138213. The next prime is 1138237. The reversal of 1138222 is 2228311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2228311 = 31 ⋅71881.

It is a self number, because there is not a number n which added to its sum of digits gives 1138222.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 284554 + ... + 284557.

It is an arithmetic number, because the mean of its divisors is an integer number (426834).

2^1138222 is an apocalyptic number.

1138222 is a deficient number, since it is larger than the sum of its proper divisors (569114).

1138222 is an equidigital number, since it uses as much as digits as its factorization.

1138222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569113.

The product of its digits is 192, while the sum is 19.

The square root of 1138222 is about 1066.8748755126. The cubic root of 1138222 is about 104.4100551571.

The spelling of 1138222 in words is "one million, one hundred thirty-eight thousand, two hundred twenty-two".