33210012021 has 16 divisors (see below), whose sum is σ = 44861011200. Its totient is φ = 21849766848.

The previous prime is 33210011987. The next prime is 33210012029. The reversal of 33210012021 is 12021001233.

It is a de Polignac number, because none of the positive numbers 2^k-33210012021 is a prime.

It is a super-2 number, since 2×33210012021² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33210012029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506875 + ... + 568631.

It is an arithmetic number, because the mean of its divisors is an integer number (2803813200).

Almost surely, 2^33210012021 is an apocalyptic number.

It is an amenable number.

33210012021 is a deficient number, since it is larger than the sum of its proper divisors (11650999179).

33210012021 is a wasteful number, since it uses less digits than its factorization.

33210012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64108.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 33210012021 its reverse (12021001233), we get a palindrome (45231013254).

The spelling of 33210012021 in words is "thirty-three billion, two hundred ten million, twelve thousand, twenty-one".