111122002001001 has 4 divisors (see below), whose sum is σ = 148162669334672. Its totient is φ = 74081334667332.

The previous prime is 111122002000987. The next prime is 111122002001039. The reversal of 111122002001001 is 100100200221111.

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 not a de Polignac number, because 111122002001001 - 2⁷ = 111122002000873 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111122002001081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18520333666831 + ... + 18520333666836.

It is an arithmetic number, because the mean of its divisors is an integer number (37040667333668).

Almost surely, 2^{111122002001001} is an apocalyptic number.

It is an amenable number.

111122002001001 is a deficient number, since it is larger than the sum of its proper divisors (37040667333671).

111122002001001 is an equidigital number, since it uses as much as digits as its factorization.

111122002001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37040667333670.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111122002001001 its reverse (100100200221111), we get a palindrome (211222202222112).

The spelling of 111122002001001 in words is "one hundred eleven trillion, one hundred twenty-two billion, two million, one thousand, one".