33022112021 has 4 divisors (see below), whose sum is σ = 33274189344. Its totient is φ = 32770034700.

The previous prime is 33022112003. The next prime is 33022112093. The reversal of 33022112021 is 12021122033.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 33022112021 - 2³⁴ = 15842242837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33022112521) 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, 126038465 + ... + 126038726.

It is an arithmetic number, because the mean of its divisors is an integer number (8318547336).

Almost surely, 2^33022112021 is an apocalyptic number.

It is an amenable number.

33022112021 is a deficient number, since it is larger than the sum of its proper divisors (252077323).

33022112021 is a wasteful number, since it uses less digits than its factorization.

33022112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252077322.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 33022112021 its reverse (12021122033), we get a palindrome (45043234054).

The spelling of 33022112021 in words is "thirty-three billion, twenty-two million, one hundred twelve thousand, twenty-one".