33202221101213 has 4 divisors (see below), whose sum is σ = 33202232666940. Its totient is φ = 33202209535488.

The previous prime is 33202221101207. The next prime is 33202221101297. The reversal of 33202221101213 is 31210112220233.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 15060942390649 + 18141278710564 = 3880843^2 + 4259258^2 .

It is a cyclic number.

It is not a de Polignac number, because 33202221101213 - 2¹² = 33202221097117 is a prime.

It is a super-2 number, since 2×33202221101213² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33202221101713) 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 in 3 ways as a sum of consecutive naturals, for example, 2157683 + ... + 8429711.

It is an arithmetic number, because the mean of its divisors is an integer number (8300558166735).

Almost surely, 2^{33202221101213} is an apocalyptic number.

It is an amenable number.

33202221101213 is a deficient number, since it is larger than the sum of its proper divisors (11565727).

33202221101213 is an equidigital number, since it uses as much as digits as its factorization.

33202221101213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11565726.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 33202221101213 its reverse (31210112220233), we get a palindrome (64412333321446).

The spelling of 33202221101213 in words is "thirty-three trillion, two hundred two billion, two hundred twenty-one million, one hundred one thousand, two hundred thirteen".