22220211213 has 24 divisors (see below), whose sum is σ = 33082454808. Its totient is φ = 14361017472.

The previous prime is 22220211203. The next prime is 22220211227. The reversal of 22220211213 is 31211202222.

22220211213 is a `hidden beast` number, since 22 + 220 + 211 + 213 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2181543849 + 20038667364 = 46707^2 + 141558^2 .

It is not a de Polignac number, because 22220211213 - 2⁶ = 22220211149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220211203) 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, 28206 + ... + 212687.

It is an arithmetic number, because the mean of its divisors is an integer number (1378435617).

Almost surely, 2^22220211213 is an apocalyptic number.

It is an amenable number.

22220211213 is a deficient number, since it is larger than the sum of its proper divisors (10862243595).

22220211213 is a wasteful number, since it uses less digits than its factorization.

22220211213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241213 (or 241210 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 22220211213 its reverse (31211202222), we get a palindrome (53431413435).

The spelling of 22220211213 in words is "twenty-two billion, two hundred twenty million, two hundred eleven thousand, two hundred thirteen".