221112112002001 has 8 divisors (see below), whose sum is σ = 241326405616608. Its totient is φ = 200916683808000.

The previous prime is 221112112001953. The next prime is 221112112002011. The reversal of 221112112002001 is 100200211211122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221112112002001 - 2¹¹ = 221112111999953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221112112002011) 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 7 ways as a sum of consecutive naturals, for example, 4716330640 + ... + 4716377521.

It is an arithmetic number, because the mean of its divisors is an integer number (30165800702076).

Almost surely, 2^{221112112002001} is an apocalyptic number.

It is an amenable number.

221112112002001 is a deficient number, since it is larger than the sum of its proper divisors (20214293614607).

221112112002001 is a wasteful number, since it uses less digits than its factorization.

221112112002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9432710303.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221112112002001 its reverse (100200211211122), we get a palindrome (321312323213123).

The spelling of 221112112002001 in words is "two hundred twenty-one trillion, one hundred twelve billion, one hundred twelve million, two thousand, one".