20112221213 has 8 divisors (see below), whose sum is σ = 22986576960. Its totient is φ = 17238160800.

The previous prime is 20112221141. The next prime is 20112221231. The reversal of 20112221213 is 31212221102.

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

It is not a de Polignac number, because 20112221213 - 2¹⁴ = 20112204829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20112221191 and 20112221200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112221273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99113 + ... + 223713.

It is an arithmetic number, because the mean of its divisors is an integer number (2873322120).

Almost surely, 2^20112221213 is an apocalyptic number.

It is an amenable number.

20112221213 is a deficient number, since it is larger than the sum of its proper divisors (2874355747).

20112221213 is a wasteful number, since it uses less digits than its factorization.

20112221213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147667.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20112221213 its reverse (31212221102), we get a palindrome (51324442315).

The spelling of 20112221213 in words is "twenty billion, one hundred twelve million, two hundred twenty-one thousand, two hundred thirteen".