1223401112289 has 16 divisors (see below), whose sum is σ = 1825485278400. Its totient is φ = 809733107808.

The previous prime is 1223401112281. The next prime is 1223401112293. The reversal of 1223401112289 is 9822111043221.

It is a happy number.

1223401112289 is a `hidden beast` number, since 1 + 2 + 23 + 401 + 1 + 1 + 228 + 9 = 666.

It is not a de Polignac number, because 1223401112289 - 2³ = 1223401112281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223401112281) 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, 162986004 + ... + 162993509.

It is an arithmetic number, because the mean of its divisors is an integer number (114092829900).

Almost surely, 2^{1223401112289} is an apocalyptic number.

It is an amenable number.

1223401112289 is a deficient number, since it is larger than the sum of its proper divisors (602084166111).

1223401112289 is a wasteful number, since it uses less digits than its factorization.

1223401112289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325979661 (or 325979655 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 1223401112289 in words is "one trillion, two hundred twenty-three billion, four hundred one million, one hundred twelve thousand, two hundred eighty-nine".