1144221332 has 24 divisors (see below), whose sum is σ = 2072770560. Its totient is φ = 552026720.

The previous prime is 1144221313. The next prime is 1144221341. The reversal of 1144221332 is 2331224411.

It is a junction number, because it is equal to n+sod(n) for n = 1144221298 and 1144221307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 309857 + ... + 313527.

It is an arithmetic number, because the mean of its divisors is an integer number (86365440).

Almost surely, 2^1144221332 is an apocalyptic number.

It is an amenable number.

1144221332 is a deficient number, since it is larger than the sum of its proper divisors (928549228).

1144221332 is a wasteful number, since it uses less digits than its factorization.

1144221332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6391 (or 6389 counting only the distinct ones).

The product of its digits is 1152, while the sum is 23.

The square root of 1144221332 is about 33826.3408012158. The cubic root of 1144221332 is about 1045.9317504980.

Adding to 1144221332 its reverse (2331224411), we get a palindrome (3475445743).

The spelling of 1144221332 in words is "one billion, one hundred forty-four million, two hundred twenty-one thousand, three hundred thirty-two".