1223112022123 has 16 divisors (see below), whose sum is σ = 1266317637984. Its totient is φ = 1180453996800.

The previous prime is 1223112022091. The next prime is 1223112022147. The reversal of 1223112022123 is 3212202113221.

It is a cyclic number.

It is not a de Polignac number, because 1223112022123 - 2⁵ = 1223112022091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223112022094 and 1223112022103.

It is not an unprimeable number, because it can be changed into a prime (1223112022163) 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 15 ways as a sum of consecutive naturals, for example, 6502036 + ... + 6687502.

It is an arithmetic number, because the mean of its divisors is an integer number (79144852374).

Almost surely, 2^{1223112022123} is an apocalyptic number.

1223112022123 is a deficient number, since it is larger than the sum of its proper divisors (43205615861).

1223112022123 is a wasteful number, since it uses less digits than its factorization.

1223112022123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186942.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1223112022123 its reverse (3212202113221), we get a palindrome (4435314135344).

The spelling of 1223112022123 in words is "one trillion, two hundred twenty-three billion, one hundred twelve million, twenty-two thousand, one hundred twenty-three".