33223442242 has 4 divisors (see below), whose sum is σ = 49835163366. Its totient is φ = 16611721120.

The previous prime is 33223442221. The next prime is 33223442249. The reversal of 33223442242 is 24224432233.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 30807621441 + 2415820801 = 175521^2 + 49151^2 .

It is a super-2 number, since 2×33223442242² (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (33223442249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8305860559 + ... + 8305860562.

Almost surely, 2^33223442242 is an apocalyptic number.

33223442242 is a deficient number, since it is larger than the sum of its proper divisors (16611721124).

33223442242 is a wasteful number, since it uses less digits than its factorization.

33223442242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16611721123.

The product of its digits is 55296, while the sum is 31.

Adding to 33223442242 its reverse (24224432233), we get a palindrome (57447874475).

The spelling of 33223442242 in words is "thirty-three billion, two hundred twenty-three million, four hundred forty-two thousand, two hundred forty-two".