11220122123 has 4 divisors (see below), whose sum is σ = 12822996720. Its totient is φ = 9617247528.

The previous prime is 11220122087. The next prime is 11220122143. The reversal of 11220122123 is 32122102211.

11220122123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11220122123 - 2⁶ = 11220122059 is a prime.

It is a super-2 number, since 2×11220122123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11220122143) 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 3 ways as a sum of consecutive naturals, for example, 801437288 + ... + 801437301.

It is an arithmetic number, because the mean of its divisors is an integer number (3205749180).

Almost surely, 2^11220122123 is an apocalyptic number.

11220122123 is a deficient number, since it is larger than the sum of its proper divisors (1602874597).

11220122123 is an equidigital number, since it uses as much as digits as its factorization.

11220122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602874596.

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

Adding to 11220122123 its reverse (32122102211), we get a palindrome (43342224334).

The spelling of 11220122123 in words is "eleven billion, two hundred twenty million, one hundred twenty-two thousand, one hundred twenty-three".