2221134242 has 16 divisors (see below), whose sum is σ = 3503941632. Its totient is φ = 1053914400.

The previous prime is 2221134241. The next prime is 2221134247. The reversal of 2221134242 is 2424311222.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (2221134241) 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 7 ways as a sum of consecutive naturals, for example, 184259 + ... + 195942.

It is an arithmetic number, because the mean of its divisors is an integer number (218996352).

Almost surely, 2^2221134242 is an apocalyptic number.

2221134242 is a deficient number, since it is larger than the sum of its proper divisors (1282807390).

2221134242 is a wasteful number, since it uses less digits than its factorization.

2221134242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380353.

The product of its digits is 1536, while the sum is 23.

The square root of 2221134242 is about 47128.9108934208. The cubic root of 2221134242 is about 1304.7428806966.

Adding to 2221134242 its reverse (2424311222), we get a palindrome (4645445464).

The spelling of 2221134242 in words is "two billion, two hundred twenty-one million, one hundred thirty-four thousand, two hundred forty-two".