22212020313 has 144 divisors (see below), whose sum is σ = 40029365376. Its totient is φ = 12264618240.

The previous prime is 22212020309. The next prime is 22212020333. The reversal of 22212020313 is 31302021222.

It is not a de Polignac number, because 22212020313 - 2² = 22212020309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22212020333) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 84456220 + ... + 84456482.

It is an arithmetic number, because the mean of its divisors is an integer number (277981704).

Almost surely, 2^22212020313 is an apocalyptic number.

It is an amenable number.

22212020313 is a deficient number, since it is larger than the sum of its proper divisors (17817345063).

22212020313 is a wasteful number, since it uses less digits than its factorization.

22212020313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 487 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 22212020313 its reverse (31302021222), we get a palindrome (53514041535).

Subtracting 22212020313 from its reverse (31302021222), we obtain a palindrome (9090000909).

The spelling of 22212020313 in words is "twenty-two billion, two hundred twelve million, twenty thousand, three hundred thirteen".