33220420201 has 2 divisors, whose sum is σ = 33220420202. Its totient is φ = 33220420200.

The previous prime is 33220420183. The next prime is 33220420213. The reversal of 33220420201 is 10202402233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19404768601 + 13815651600 = 139301^2 + 117540^2 .

It is an emirp because it is prime and its reverse (10202402233) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33220420201 - 2⁵ = 33220420169 is a prime.

It is a super-2 number, since 2×33220420201² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33220420301) 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, 16610210100 + 16610210101.

It is an arithmetic number, because the mean of its divisors is an integer number (16610210101).

Almost surely, 2^33220420201 is an apocalyptic number.

It is an amenable number.

33220420201 is a deficient number, since it is larger than the sum of its proper divisors (1).

33220420201 is an equidigital number, since it uses as much as digits as its factorization.

33220420201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 33220420201 its reverse (10202402233), we get a palindrome (43422822434).

The spelling of 33220420201 in words is "thirty-three billion, two hundred twenty million, four hundred twenty thousand, two hundred one".