33222042442 has 4 divisors (see below), whose sum is σ = 49833063666. Its totient is φ = 16611021220.

The previous prime is 33222042433. The next prime is 33222042473. The reversal of 33222042442 is 24424022233.

It is a happy number.

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., 20214868041 + 13007174401 = 142179^2 + 114049^2 .

It is a super-2 number, since 2×33222042442² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33222042442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8305510609 + ... + 8305510612.

Almost surely, 2^33222042442 is an apocalyptic number.

33222042442 is a deficient number, since it is larger than the sum of its proper divisors (16611021224).

33222042442 is a wasteful number, since it uses less digits than its factorization.

33222042442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16611021223.

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 33222042442 its reverse (24424022233), we get a palindrome (57646064675).

The spelling of 33222042442 in words is "thirty-three billion, two hundred twenty-two million, forty-two thousand, four hundred forty-two".