20112112213 has 8 divisors (see below), whose sum is σ = 20160334656. Its totient is φ = 20063940000.

The previous prime is 20112112201. The next prime is 20112112253. The reversal of 20112112213 is 31221121102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20112112213 - 2²¹ = 20110015061 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 (20112112253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 860520 + ... + 883582.

It is an arithmetic number, because the mean of its divisors is an integer number (2520041832).

Almost surely, 2^20112112213 is an apocalyptic number.

It is an amenable number.

20112112213 is a deficient number, since it is larger than the sum of its proper divisors (48222443).

20112112213 is a wasteful number, since it uses less digits than its factorization.

20112112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25115.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20112112213 its reverse (31221121102), we get a palindrome (51333233315).

The spelling of 20112112213 in words is "twenty billion, one hundred twelve million, one hundred twelve thousand, two hundred thirteen".