33214443421 has 4 divisors (see below), whose sum is σ = 33241037500. Its totient is φ = 33187849344.

The previous prime is 33214443391. The next prime is 33214443433. The reversal of 33214443421 is 12434441233.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12434441233 = 14843 ⋅837731.

It can be written as a sum of positive squares in 2 ways, for example, as 11923548025 + 21290895396 = 109195^2 + 145914^2 .

It is a cyclic number.

It is not a de Polignac number, because 33214443421 - 2⁵ = 33214443389 is a prime.

It is a super-2 number, since 2×33214443421² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33214443721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13295166 + ... + 13297663.

It is an arithmetic number, because the mean of its divisors is an integer number (8310259375).

Almost surely, 2^33214443421 is an apocalyptic number.

It is an amenable number.

33214443421 is a deficient number, since it is larger than the sum of its proper divisors (26594079).

33214443421 is a wasteful number, since it uses less digits than its factorization.

33214443421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26594078.

The product of its digits is 27648, while the sum is 31.

Adding to 33214443421 its reverse (12434441233), we get a palindrome (45648884654).

The spelling of 33214443421 in words is "thirty-three billion, two hundred fourteen million, four hundred forty-three thousand, four hundred twenty-one".