111121322001 has 32 divisors (see below), whose sum is σ = 164157176448. Its totient is φ = 66558735360.

The previous prime is 111121321999. The next prime is 111121322017. The reversal of 111121322001 is 100223121111.

It is not a de Polignac number, because 111121322001 - 2¹ = 111121321999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111121322051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 455535 + ... + 655556.

It is an arithmetic number, because the mean of its divisors is an integer number (5129911764).

Almost surely, 2^111121322001 is an apocalyptic number.

It is an amenable number.

111121322001 is a deficient number, since it is larger than the sum of its proper divisors (53035854447).

111121322001 is a wasteful number, since it uses less digits than its factorization.

111121322001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111201.

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

Adding to 111121322001 its reverse (100223121111), we get a palindrome (211344443112).

The spelling of 111121322001 in words is "one hundred eleven billion, one hundred twenty-one million, three hundred twenty-two thousand, one".