33302213212220 has 24 divisors (see below), whose sum is σ = 69935558130144. Its totient is φ = 13320711878336.

The previous prime is 33302213212187. The next prime is 33302213212231. The reversal of 33302213212220 is 2221231220333.

It is a super-2 number, since 2×33302213212220² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33302213212220.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9257504 + ... + 12341223.

It is an arithmetic number, because the mean of its divisors is an integer number (2913981588756).

Almost surely, 2^{33302213212220} is an apocalyptic number.

It is an amenable number.

33302213212220 is an abundant number, since it is smaller than the sum of its proper divisors (36633344917924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33302213212220 is a wasteful number, since it uses less digits than its factorization.

33302213212220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21675829 (or 21675827 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 33302213212220 its reverse (2221231220333), we get a palindrome (35523444432553).

The spelling of 33302213212220 in words is "thirty-three trillion, three hundred two billion, two hundred thirteen million, two hundred twelve thousand, two hundred twenty".