33210214021 has 2 divisors, whose sum is σ = 33210214022. Its totient is φ = 33210214020.

The previous prime is 33210214007. The next prime is 33210214031. The reversal of 33210214021 is 12041201233.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26663624100 + 6546589921 = 163290^2 + 80911^2 .

It is a cyclic number.

It is not a de Polignac number, because 33210214021 - 2⁷ = 33210213893 is a prime.

It is a super-2 number, since 2×33210214021² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33210214021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33210214031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16605107010 + 16605107011.

It is an arithmetic number, because the mean of its divisors is an integer number (16605107011).

Almost surely, 2^33210214021 is an apocalyptic number.

It is an amenable number.

33210214021 is a deficient number, since it is larger than the sum of its proper divisors (1).

33210214021 is an equidigital number, since it uses as much as digits as its factorization.

33210214021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 33210214021 its reverse (12041201233), we get a palindrome (45251415254).

The spelling of 33210214021 in words is "thirty-three billion, two hundred ten million, two hundred fourteen thousand, twenty-one".