122211123 has 4 divisors (see below), whose sum is σ = 162948168. Its totient is φ = 81474080.

The previous prime is 122211091. The next prime is 122211157. The reversal of 122211123 is 321112221.

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

It is a cyclic number.

It is not a de Polignac number, because 122211123 - 2⁵ = 122211091 is a prime.

It is a super-4 number, since 4×122211123⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (122213123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20368518 + ... + 20368523.

It is an arithmetic number, because the mean of its divisors is an integer number (40737042).

Almost surely, 2^122211123 is an apocalyptic number.

122211123 is a deficient number, since it is larger than the sum of its proper divisors (40737045).

122211123 is an equidigital number, since it uses as much as digits as its factorization.

122211123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40737044.

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

The square root of 122211123 is about 11054.9139752420. The cubic root of 122211123 is about 496.2534948477.

Adding to 122211123 its reverse (321112221), we get a palindrome (443323344).

The spelling of 122211123 in words is "one hundred twenty-two million, two hundred eleven thousand, one hundred twenty-three".