33223420443 has 16 divisors (see below), whose sum is σ = 46230644736. Its totient is φ = 21182853120.

The previous prime is 33223420421. The next prime is 33223420493. The reversal of 33223420443 is 34402432233.

It is not a de Polignac number, because 33223420443 - 2⁵ = 33223420411 is a prime.

It is a super-2 number, since 2×33223420443² (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 33223420443.

It is not an unprimeable number, because it can be changed into a prime (33223420493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 498646 + ... + 561332.

It is an arithmetic number, because the mean of its divisors is an integer number (2889415296).

Almost surely, 2^33223420443 is an apocalyptic number.

33223420443 is a deficient number, since it is larger than the sum of its proper divisors (13007224293).

33223420443 is a wasteful number, since it uses less digits than its factorization.

33223420443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70394.

The product of its (nonzero) digits is 41472, while the sum is 30.

Adding to 33223420443 its reverse (34402432233), we get a palindrome (67625852676).

The spelling of 33223420443 in words is "thirty-three billion, two hundred twenty-three million, four hundred twenty thousand, four hundred forty-three".