22113121123 has 8 divisors (see below), whose sum is σ = 22154734800. Its totient is φ = 22071535200.

The previous prime is 22113121109. The next prime is 22113121157. The reversal of 22113121123 is 32112131122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22113121123 is a prime.

It is a super-2 number, since 2×22113121123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22113121123.

It is not an unprimeable number, because it can be changed into a prime (22113121523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2228473 + ... + 2238373.

It is an arithmetic number, because the mean of its divisors is an integer number (2769341850).

Almost surely, 2^22113121123 is an apocalyptic number.

22113121123 is a deficient number, since it is larger than the sum of its proper divisors (41613677).

22113121123 is an equidigital number, since it uses as much as digits as its factorization.

22113121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13877.

The product of its digits is 144, while the sum is 19.

Adding to 22113121123 its reverse (32112131122), we get a palindrome (54225252245).

Subtracting 22113121123 from its reverse (32112131122), we obtain a palindrome (9999009999).

The spelling of 22113121123 in words is "twenty-two billion, one hundred thirteen million, one hundred twenty-one thousand, one hundred twenty-three".