20122102112123 has 72 divisors (see below), whose sum is σ = 24264479619072. Its totient is φ = 16653621600000.

The previous prime is 20122102112069. The next prime is 20122102112173. The reversal of 20122102112123 is 32121120122102.

It is not a de Polignac number, because 20122102112123 - 2²² = 20122097917819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20122102112095 and 20122102112104.

It is not an unprimeable number, because it can be changed into a prime (20122102112173) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4235337998 + ... + 4235342748.

It is an arithmetic number, because the mean of its divisors is an integer number (337006661376).

Almost surely, 2^{20122102112123} is an apocalyptic number.

20122102112123 is a deficient number, since it is larger than the sum of its proper divisors (4142377506949).

20122102112123 is a wasteful number, since it uses less digits than its factorization.

20122102112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8745 (or 8717 counting only the distinct ones).

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

Adding to 20122102112123 its reverse (32121120122102), we get a palindrome (52243222234225).

The spelling of 20122102112123 in words is "twenty trillion, one hundred twenty-two billion, one hundred two million, one hundred twelve thousand, one hundred twenty-three".