111222002001 has 32 divisors (see below), whose sum is σ = 170717114880. Its totient is φ = 63700128000.

The previous prime is 111222001981. The next prime is 111222002009. The reversal of 111222002001 is 100200222111.

It is not a de Polignac number, because 111222002001 - 2⁶ = 111222001937 is a prime.

It is a super-2 number, since 2×111222002001² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111222002009) 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, 30246 + ... + 472608.

It is an arithmetic number, because the mean of its divisors is an integer number (5334909840).

Almost surely, 2^111222002001 is an apocalyptic number.

111222002001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111222002001 is a deficient number, since it is larger than the sum of its proper divisors (59495112879).

111222002001 is a wasteful number, since it uses less digits than its factorization.

111222002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442797.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 111222002001 its reverse (100200222111), we get a palindrome (211422224112).

The spelling of 111222002001 in words is "one hundred eleven billion, two hundred twenty-two million, two thousand, one".