33001202221 has 8 divisors (see below), whose sum is σ = 35720163864. Its totient is φ = 30308013120.

The previous prime is 33001202203. The next prime is 33001202237. The reversal of 33001202221 is 12220210033.

It can be written as a sum of positive squares in 4 ways, for example, as 18357540100 + 14643662121 = 135490^2 + 121011^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 33001202221 - 2⁵ = 33001202189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33001202195 and 33001202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33001202251) 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, 6440470 + ... + 6445591.

It is an arithmetic number, because the mean of its divisors is an integer number (4465020483).

Almost surely, 2^33001202221 is an apocalyptic number.

It is an amenable number.

33001202221 is a deficient number, since it is larger than the sum of its proper divisors (2718961643).

33001202221 is a wasteful number, since it uses less digits than its factorization.

33001202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12886271.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 33001202221 its reverse (12220210033), we get a palindrome (45221412254).

The spelling of 33001202221 in words is "thirty-three billion, one million, two hundred two thousand, two hundred twenty-one".