22012223213 has 16 divisors (see below), whose sum is σ = 22761648000. Its totient is φ = 21273880320.

The previous prime is 22012223201. The next prime is 22012223221. The reversal of 22012223213 is 31232221022.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22012223213 - 2¹⁴ = 22012206829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22012223243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1895258 + ... + 1906836.

It is an arithmetic number, because the mean of its divisors is an integer number (1422603000).

Almost surely, 2^22012223213 is an apocalyptic number.

It is an amenable number.

22012223213 is a deficient number, since it is larger than the sum of its proper divisors (749424787).

22012223213 is a wasteful number, since it uses less digits than its factorization.

22012223213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12052.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 22012223213 its reverse (31232221022), we get a palindrome (53244444235).

The spelling of 22012223213 in words is "twenty-two billion, twelve million, two hundred twenty-three thousand, two hundred thirteen".