2012221113 has 24 divisors (see below), whose sum is σ = 3125967552. Its totient is φ = 1148009184.

The previous prime is 2012221111. The next prime is 2012221121. The reversal of 2012221113 is 3111222102.

It is not a de Polignac number, because 2012221113 - 2¹ = 2012221111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2012221092 and 2012221101.

It is not an unprimeable number, because it can be changed into a prime (2012221111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84531 + ... + 105687.

It is an arithmetic number, because the mean of its divisors is an integer number (130248648).

Almost surely, 2^2012221113 is an apocalyptic number.

It is an amenable number.

2012221113 is a deficient number, since it is larger than the sum of its proper divisors (1113746439).

2012221113 is a wasteful number, since it uses less digits than its factorization.

2012221113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21821 (or 21814 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2012221113 is about 44857.7876516442. The cubic root of 2012221113 is about 1262.4821133694.

Adding to 2012221113 its reverse (3111222102), we get a palindrome (5123443215).

The spelling of 2012221113 in words is "two billion, twelve million, two hundred twenty-one thousand, one hundred thirteen".