33220020213 has 8 divisors (see below), whose sum is σ = 49214844800. Its totient is φ = 22146680124.

The previous prime is 33220020193. The next prime is 33220020221. The reversal of 33220020213 is 31202002233.

It is a happy number.

It is not a de Polignac number, because 33220020213 - 2¹² = 33220016117 is a prime.

It is a super-2 number, since 2×33220020213² (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 (33220020293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615185533 + ... + 615185586.

It is an arithmetic number, because the mean of its divisors is an integer number (6151855600).

Almost surely, 2^33220020213 is an apocalyptic number.

It is an amenable number.

33220020213 is a deficient number, since it is larger than the sum of its proper divisors (15994824587).

33220020213 is a wasteful number, since it uses less digits than its factorization.

33220020213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230371128 (or 1230371122 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 33220020213 its reverse (31202002233), we get a palindrome (64422022446).

The spelling of 33220020213 in words is "thirty-three billion, two hundred twenty million, twenty thousand, two hundred thirteen".