1142220233 has 12 divisors (see below), whose sum is σ = 1449497232. Its totient is φ = 890041320.

The previous prime is 1142220199. The next prime is 1142220257. The reversal of 1142220233 is 3320222411.

It is not a de Polignac number, because 1142220233 - 2¹⁸ = 1141958089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142220263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1059035 + ... + 1060112.

It is an arithmetic number, because the mean of its divisors is an integer number (120791436).

Almost surely, 2^1142220233 is an apocalyptic number.

It is an amenable number.

1142220233 is a deficient number, since it is larger than the sum of its proper divisors (307276999).

1142220233 is a wasteful number, since it uses less digits than its factorization.

1142220233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119172 (or 2119165 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1142220233 is about 33796.7488525154. The cubic root of 1142220233 is about 1045.3216604024.

Adding to 1142220233 its reverse (3320222411), we get a palindrome (4462442644).

The spelling of 1142220233 in words is "one billion, one hundred forty-two million, two hundred twenty thousand, two hundred thirty-three".