33220103221 has 2 divisors, whose sum is σ = 33220103222. Its totient is φ = 33220103220.

The previous prime is 33220103207. The next prime is 33220103233. The reversal of 33220103221 is 12230102233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32757380100 + 462723121 = 180990^2 + 21511^2 .

It is a cyclic number.

It is not a de Polignac number, because 33220103221 - 2¹⁵ = 33220070453 is a prime.

It is a super-2 number, since 2×33220103221² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33220103281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16610051610 + 16610051611.

It is an arithmetic number, because the mean of its divisors is an integer number (16610051611).

Almost surely, 2^33220103221 is an apocalyptic number.

It is an amenable number.

33220103221 is a deficient number, since it is larger than the sum of its proper divisors (1).

33220103221 is an equidigital number, since it uses as much as digits as its factorization.

33220103221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 33220103221 its reverse (12230102233), we get a palindrome (45450205454).

The spelling of 33220103221 in words is "thirty-three billion, two hundred twenty million, one hundred three thousand, two hundred twenty-one".