33310120021 has 2 divisors, whose sum is σ = 33310120022. Its totient is φ = 33310120020.

The previous prime is 33310120013. The next prime is 33310120033. The reversal of 33310120021 is 12002101333.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27427996996 + 5882123025 = 165614^2 + 76695^2 .

It is a cyclic number.

It is not a de Polignac number, because 33310120021 - 2³ = 33310120013 is a prime.

It is a super-2 number, since 2×33310120021² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33310119977 and 33310120004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33310180021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16655060010 + 16655060011.

It is an arithmetic number, because the mean of its divisors is an integer number (16655060011).

Almost surely, 2^33310120021 is an apocalyptic number.

It is an amenable number.

33310120021 is a deficient number, since it is larger than the sum of its proper divisors (1).

33310120021 is an equidigital number, since it uses as much as digits as its factorization.

33310120021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 33310120021 its reverse (12002101333), we get a palindrome (45312221354).

The spelling of 33310120021 in words is "thirty-three billion, three hundred ten million, one hundred twenty thousand, twenty-one".