2216321622306 has 48 divisors (see below), whose sum is σ = 5350037516928. Its totient is φ = 657322980000.

The previous prime is 2216321622301. The next prime is 2216321622349. The reversal of 2216321622306 is 6032261236122.

2216321622306 is a `hidden beast` number, since 2 + 2 + 1 + 6 + 3 + 21 + 622 + 3 + 0 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (2216321622301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119070945 + ... + 119089556.

It is an arithmetic number, because the mean of its divisors is an integer number (111459114936).

Almost surely, 2^{2216321622306} is an apocalyptic number.

2216321622306 is an abundant number, since it is smaller than the sum of its proper divisors (3133715894622).

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

2216321622306 is a wasteful number, since it uses less digits than its factorization.

2216321622306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238160567 (or 238160564 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

Adding to 2216321622306 its reverse (6032261236122), we get a palindrome (8248582858428).

The spelling of 2216321622306 in words is "two trillion, two hundred sixteen billion, three hundred twenty-one million, six hundred twenty-two thousand, three hundred six".