33202222221 has 8 divisors (see below), whose sum is σ = 50593862464. Its totient is φ = 18972698400.

The previous prime is 33202222213. The next prime is 33202222223. The reversal of 33202222221 is 12222220233.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33202222221 - 2³ = 33202222213 is a prime.

It is a super-2 number, since 2×33202222221² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 1581058201 = 33202222221 / (3 + 3 + 2 + 0 + 2 + 2 + 2 + 2 + 2 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33202222223) 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, 790529080 + ... + 790529121.

It is an arithmetic number, because the mean of its divisors is an integer number (6324232808).

Almost surely, 2^33202222221 is an apocalyptic number.

It is an amenable number.

33202222221 is a deficient number, since it is larger than the sum of its proper divisors (17391640243).

33202222221 is a wasteful number, since it uses less digits than its factorization.

33202222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1581058211.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 33202222221 its reverse (12222220233), we get a palindrome (45424442454).

The spelling of 33202222221 in words is "thirty-three billion, two hundred two million, two hundred twenty-two thousand, two hundred twenty-one".