22021113 has 8 divisors (see below), whose sum is σ = 29386368. Its totient is φ = 14668304.

The previous prime is 22021093. The next prime is 22021123. The reversal of 22021113 is 31112022.

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 22021113 - 2⁶ = 22021049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22021123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2431 + ... + 7067.

It is an arithmetic number, because the mean of its divisors is an integer number (3673296).

Almost surely, 2^22021113 is an apocalyptic number.

It is an amenable number.

22021113 is a deficient number, since it is larger than the sum of its proper divisors (7365255).

22021113 is a wasteful number, since it uses less digits than its factorization.

22021113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6223.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 22021113 is about 4692.6658734668. The cubic root of 22021113 is about 280.2935399469.

Adding to 22021113 its reverse (31112022), we get a palindrome (53133135).

Subtracting 22021113 from its reverse (31112022), we obtain a palindrome (9090909).

The spelling of 22021113 in words is "twenty-two million, twenty-one thousand, one hundred thirteen".