21220333302212 has 48 divisors (see below), whose sum is σ = 41584848439680. Its totient is φ = 9391023878400.

The previous prime is 21220333302167. The next prime is 21220333302221.

21220333302212 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11198387 + ... + 12955482.

It is an arithmetic number, because the mean of its divisors is an integer number (866351009160).

Almost surely, 2^{21220333302212} is an apocalyptic number.

21220333302212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21220333302212 is a deficient number, since it is larger than the sum of its proper divisors (20364515137468).

21220333302212 is a wasteful number, since it uses less digits than its factorization.

21220333302212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24154412 (or 24154410 counting only the distinct ones).

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

It can be divided in two parts, 2122033 and 3302212, that added together give a palindrome (5424245).

The spelling of 21220333302212 in words is "twenty-one trillion, two hundred twenty billion, three hundred thirty-three million, three hundred two thousand, two hundred twelve".