112221102020123 has 4 divisors (see below), whose sum is σ = 117100280368848. Its totient is φ = 107341923671400.

The previous prime is 112221102020113. The next prime is 112221102020201. The reversal of 112221102020123 is 321020201122211.

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 112221102020123 - 2¹⁰ = 112221102019099 is a prime.

It is a super-2 number, since 2×112221102020123² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 112221102020095 and 112221102020104.

It is not an unprimeable number, because it can be changed into a prime (112221102020113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2439589174328 + ... + 2439589174373.

It is an arithmetic number, because the mean of its divisors is an integer number (29275070092212).

Almost surely, 2^{112221102020123} is an apocalyptic number.

112221102020123 is a deficient number, since it is larger than the sum of its proper divisors (4879178348725).

112221102020123 is an equidigital number, since it uses as much as digits as its factorization.

112221102020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4879178348724.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 112221102020123 its reverse (321020201122211), we get a palindrome (433241303142334).

The spelling of 112221102020123 in words is "one hundred twelve trillion, two hundred twenty-one billion, one hundred two million, twenty thousand, one hundred twenty-three".