22001113213 has 16 divisors (see below), whose sum is σ = 23386752000. Its totient is φ = 20639232432.

The previous prime is 22001113201. The next prime is 22001113237. The reversal of 22001113213 is 31231110022.

It is a cyclic number.

It is not a de Polignac number, because 22001113213 - 2⁵ = 22001113181 is a prime.

It is a super-2 number, since 2×22001113213² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001113273) 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, 799306 + ... + 826372.

It is an arithmetic number, because the mean of its divisors is an integer number (1461672000).

Almost surely, 2^22001113213 is an apocalyptic number.

It is an amenable number.

22001113213 is a deficient number, since it is larger than the sum of its proper divisors (1385638787).

22001113213 is a wasteful number, since it uses less digits than its factorization.

22001113213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27504.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 22001113213 its reverse (31231110022), we get a palindrome (53232223235).

The spelling of 22001113213 in words is "twenty-two billion, one million, one hundred thirteen thousand, two hundred thirteen".