1142222 has 4 divisors (see below), whose sum is σ = 1713336. Its totient is φ = 571110.

The previous prime is 1142201. The next prime is 1142233. The reversal of 1142222 is 2222411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2222411 = 19 ⋅116969.

1142222 is a modest number, since divided by 2222 gives 114 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 1142197 and 1142206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285554 + ... + 285557.

It is an arithmetic number, because the mean of its divisors is an integer number (428334).

2^1142222 is an apocalyptic number.

1142222 is a deficient number, since it is larger than the sum of its proper divisors (571114).

1142222 is an equidigital number, since it uses as much as digits as its factorization.

1142222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571113.

The product of its digits is 64, while the sum is 14.

The square root of 1142222 is about 1068.7478654949. The cubic root of 1142222 is about 104.5322199435.

Adding to 1142222 its reverse (2222411), we get a palindrome (3364633).

The spelling of 1142222 in words is "one million, one hundred forty-two thousand, two hundred twenty-two".