33210112021 has 2 divisors, whose sum is σ = 33210112022. Its totient is φ = 33210112020.

The previous prime is 33210112003. The next prime is 33210112037. The reversal of 33210112021 is 12021101233.

It is an a-pointer prime, because the next prime (33210112037) can be obtained adding 33210112021 to its sum of digits (16).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27526459921 + 5683652100 = 165911^2 + 75390^2 .

It is an emirp because it is prime and its reverse (12021101233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33210112021 - 2¹⁷ = 33209980949 is a prime.

It is a super-2 number, since 2×33210112021² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33210111986 and 33210112004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33210112081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16605056010 + 16605056011.

It is an arithmetic number, because the mean of its divisors is an integer number (16605056011).

Almost surely, 2^33210112021 is an apocalyptic number.

It is an amenable number.

33210112021 is a deficient number, since it is larger than the sum of its proper divisors (1).

33210112021 is an equidigital number, since it uses as much as digits as its factorization.

33210112021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 33210112021 its reverse (12021101233), we get a palindrome (45231213254).

The spelling of 33210112021 in words is "thirty-three billion, two hundred ten million, one hundred twelve thousand, twenty-one".