111011122012001 has 4 divisors (see below), whose sum is σ = 114592125947904. Its totient is φ = 107430118076100.

The previous prime is 111011122011989. The next prime is 111011122012027. The reversal of 111011122012001 is 100210221110111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111011122012001 - 2¹⁴ = 111011121995617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111011122612001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1790501967905 + ... + 1790501967966.

It is an arithmetic number, because the mean of its divisors is an integer number (28648031486976).

Almost surely, 2^{111011122012001} is an apocalyptic number.

It is an amenable number.

111011122012001 is a deficient number, since it is larger than the sum of its proper divisors (3581003935903).

111011122012001 is an equidigital number, since it uses as much as digits as its factorization.

111011122012001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581003935902.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 111011122012001 its reverse (100210221110111), we get a palindrome (211221343122112).

The spelling of 111011122012001 in words is "one hundred eleven trillion, eleven billion, one hundred twenty-two million, twelve thousand, one".