1143916222 has 4 divisors (see below), whose sum is σ = 1715874336. Its totient is φ = 571958110.

The previous prime is 1143916177. The next prime is 1143916237. The reversal of 1143916222 is 2226193411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2226193411 = 13 ⋅171245647.

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, 285979054 + ... + 285979057.

It is an arithmetic number, because the mean of its divisors is an integer number (428968584).

Almost surely, 2^1143916222 is an apocalyptic number.

1143916222 is a deficient number, since it is larger than the sum of its proper divisors (571958114).

1143916222 is an equidigital number, since it uses as much as digits as its factorization.

1143916222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571958113.

The product of its digits is 5184, while the sum is 31.

The square root of 1143916222 is about 33821.8305536528. The cubic root of 1143916222 is about 1045.8387753026.

It can be divided in two parts, 1143916 and 222, that multiplied together give a palindrome (253949352).

The spelling of 1143916222 in words is "one billion, one hundred forty-three million, nine hundred sixteen thousand, two hundred twenty-two".