22111112001 has 32 divisors (see below), whose sum is σ = 33235614720. Its totient is φ = 12959352000.

The previous prime is 22111111969. The next prime is 22111112039. The reversal of 22111112001 is 10021111122.

It is not a de Polignac number, because 22111112001 - 2⁵ = 22111111969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22111112081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66180 + ... + 220458.

It is an arithmetic number, because the mean of its divisors is an integer number (1038612960).

Almost surely, 2^22111112001 is an apocalyptic number.

It is an amenable number.

22111112001 is a deficient number, since it is larger than the sum of its proper divisors (11124502719).

22111112001 is a wasteful number, since it uses less digits than its factorization.

22111112001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154437.

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

Adding to 22111112001 its reverse (10021111122), we get a palindrome (32132223123).

The spelling of 22111112001 in words is "twenty-two billion, one hundred eleven million, one hundred twelve thousand, one".