122112201120123 has 4 divisors (see below), whose sum is σ = 162816268160168. Its totient is φ = 81408134080080.

The previous prime is 122112201120121. The next prime is 122112201120197. The reversal of 122112201120123 is 321021102211221.

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

It is not a de Polignac number, because 122112201120123 - 2¹ = 122112201120121 is a prime.

It is a super-2 number, since 2×122112201120123² (a number of 29 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 122112201120123.

It is not an unprimeable number, because it can be changed into a prime (122112201120121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20352033520018 + ... + 20352033520023.

It is an arithmetic number, because the mean of its divisors is an integer number (40704067040042).

Almost surely, 2^{122112201120123} is an apocalyptic number.

122112201120123 is a deficient number, since it is larger than the sum of its proper divisors (40704067040045).

122112201120123 is an equidigital number, since it uses as much as digits as its factorization.

122112201120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40704067040044.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 122112201120123 its reverse (321021102211221), we get a palindrome (443133303331344).

The spelling of 122112201120123 in words is "one hundred twenty-two trillion, one hundred twelve billion, two hundred one million, one hundred twenty thousand, one hundred twenty-three".