22012230213 has 12 divisors (see below), whose sum is σ = 32316681228. Its totient is φ = 14434248960.

The previous prime is 22012230211. The next prime is 22012230221. The reversal of 22012230213 is 31203221022.

22012230213 is a `hidden beast` number, since 220 + 1 + 2 + 230 + 213 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 819276129 + 21192954084 = 28623^2 + 145578^2 .

It is not a de Polignac number, because 22012230213 - 2¹ = 22012230211 is a prime.

It is a super-2 number, since 2×22012230213² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012230211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20047020 + ... + 20048117.

It is an arithmetic number, because the mean of its divisors is an integer number (2693056769).

Almost surely, 2^22012230213 is an apocalyptic number.

It is an amenable number.

22012230213 is a deficient number, since it is larger than the sum of its proper divisors (10304451015).

22012230213 is a wasteful number, since it uses less digits than its factorization.

22012230213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40095204 (or 40095201 counting only the distinct ones).

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

Adding to 22012230213 its reverse (31203221022), we get a palindrome (53215451235).

The spelling of 22012230213 in words is "twenty-two billion, twelve million, two hundred thirty thousand, two hundred thirteen".