33233101021 has 2 divisors, whose sum is σ = 33233101022. Its totient is φ = 33233101020.

The previous prime is 33233101019. The next prime is 33233101037. The reversal of 33233101021 is 12010133233.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28185708996 + 5047392025 = 167886^2 + 71045^2 .

It is a cyclic number.

It is not a de Polignac number, because 33233101021 - 2¹ = 33233101019 is a prime.

It is a super-2 number, since 2×33233101021² (a number of 22 digits) contains 22 as substring.

Together with 33233101019, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 33233101021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33233101091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16616550510 + 16616550511.

It is an arithmetic number, because the mean of its divisors is an integer number (16616550511).

Almost surely, 2^33233101021 is an apocalyptic number.

It is an amenable number.

33233101021 is a deficient number, since it is larger than the sum of its proper divisors (1).

33233101021 is an equidigital number, since it uses as much as digits as its factorization.

33233101021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 33233101021 its reverse (12010133233), we get a palindrome (45243234254).

It can be divided in two parts, 3323310 and 1021, that added together give a triangular number (3324331 = T₂₅₇₈).

The spelling of 33233101021 in words is "thirty-three billion, two hundred thirty-three million, one hundred one thousand, twenty-one".