1144243222 has 4 divisors (see below), whose sum is σ = 1716364836. Its totient is φ = 572121610.

The previous prime is 1144243207. The next prime is 1144243223. The reversal of 1144243222 is 2223424411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2223424411 = 13 ⋅171032647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144243223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286060804 + ... + 286060807.

It is an arithmetic number, because the mean of its divisors is an integer number (429091209).

Almost surely, 2^1144243222 is an apocalyptic number.

1144243222 is a deficient number, since it is larger than the sum of its proper divisors (572121614).

1144243222 is an equidigital number, since it uses as much as digits as its factorization.

1144243222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572121613.

The product of its digits is 3072, while the sum is 25.

The square root of 1144243222 is about 33826.6643640782. The cubic root of 1144243222 is about 1045.9384203323.

Adding to 1144243222 its reverse (2223424411), we get a palindrome (3367667633).

The spelling of 1144243222 in words is "one billion, one hundred forty-four million, two hundred forty-three thousand, two hundred twenty-two".