1111323221201 has 16 divisors (see below), whose sum is σ = 1116105671808. Its totient is φ = 1106555203200.

The previous prime is 1111323221167. The next prime is 1111323221219. The reversal of 1111323221201 is 1021223231111.

It is a cyclic number.

It is not a de Polignac number, because 1111323221201 - 2¹⁰ = 1111323220177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111323221221) 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, 557612261 + ... + 557614253.

It is an arithmetic number, because the mean of its divisors is an integer number (69756604488).

Almost surely, 2^{1111323221201} is an apocalyptic number.

It is an amenable number.

1111323221201 is a deficient number, since it is larger than the sum of its proper divisors (4782450607).

1111323221201 is a wasteful number, since it uses less digits than its factorization.

1111323221201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4552.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1111323221201 its reverse (1021223231111), we get a palindrome (2132546452312).

It can be divided in two parts, 111132 and 3221201, that added together give a palindrome (3332333).

The spelling of 1111323221201 in words is "one trillion, one hundred eleven billion, three hundred twenty-three million, two hundred twenty-one thousand, two hundred one".