33422100221021 has 2 divisors, whose sum is σ = 33422100221022. Its totient is φ = 33422100221020.

The previous prime is 33422100220969. The next prime is 33422100221161. The reversal of 33422100221021 is 12012200122433.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32775224251225 + 646875969796 = 5724965^2 + 804286^2 .

It is a cyclic number.

It is not a de Polignac number, because 33422100221021 - 2¹⁰ = 33422100219997 is a prime.

It is a super-2 number, since 2×33422100221021² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33422100221621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16711050110510 + 16711050110511.

It is an arithmetic number, because the mean of its divisors is an integer number (16711050110511).

Almost surely, 2^{33422100221021} is an apocalyptic number.

It is an amenable number.

33422100221021 is a deficient number, since it is larger than the sum of its proper divisors (1).

33422100221021 is an equidigital number, since it uses as much as digits as its factorization.

33422100221021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 33422100221021 its reverse (12012200122433), we get a palindrome (45434300343454).

The spelling of 33422100221021 in words is "thirty-three trillion, four hundred twenty-two billion, one hundred million, two hundred twenty-one thousand, twenty-one".