1223112110001 has 16 divisors (see below), whose sum is σ = 1716688650240. Its totient is φ = 772473825360.

The previous prime is 1223112109997. The next prime is 1223112110047. The reversal of 1223112110001 is 1000112113221.

It is not a de Polignac number, because 1223112110001 - 2² = 1223112109997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223113110001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2469456 + ... + 2923086.

It is an arithmetic number, because the mean of its divisors is an integer number (107293040640).

Almost surely, 2^{1223112110001} is an apocalyptic number.

It is an amenable number.

1223112110001 is a deficient number, since it is larger than the sum of its proper divisors (493576540239).

1223112110001 is a wasteful number, since it uses less digits than its factorization.

1223112110001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500956.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1223112110001 its reverse (1000112113221), we get a palindrome (2223224223222).

The spelling of 1223112110001 in words is "one trillion, two hundred twenty-three billion, one hundred twelve million, one hundred ten thousand, one".