33000201021 has 4 divisors (see below), whose sum is σ = 44000268032. Its totient is φ = 22000134012.

The previous prime is 33000201007. The next prime is 33000201029. The reversal of 33000201021 is 12010200033.

It is a happy number.

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 not a de Polignac number, because 33000201021 - 2⁹ = 33000200509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33000200988 and 33000201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33000201029) 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, 5500033501 + ... + 5500033506.

It is an arithmetic number, because the mean of its divisors is an integer number (11000067008).

Almost surely, 2^33000201021 is an apocalyptic number.

It is an amenable number.

33000201021 is a deficient number, since it is larger than the sum of its proper divisors (11000067011).

33000201021 is a wasteful number, since it uses less digits than its factorization.

33000201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11000067010.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 33000201021 its reverse (12010200033), we get a palindrome (45010401054).

The spelling of 33000201021 in words is "thirty-three billion, two hundred one thousand, twenty-one".