2211111222001 has 8 divisors (see below), whose sum is σ = 2422130138208. Its totient is φ = 2001760440000.

The previous prime is 2211111221993. The next prime is 2211111222007. The reversal of 2211111222001 is 1002221111122.

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 2211111222001 - 2³ = 2211111221993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2211111222007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417030775 + ... + 417036076.

It is an arithmetic number, because the mean of its divisors is an integer number (302766267276).

Almost surely, 2^{2211111222001} is an apocalyptic number.

It is an amenable number.

2211111222001 is a deficient number, since it is larger than the sum of its proper divisors (211018916207).

2211111222001 is a wasteful number, since it uses less digits than its factorization.

2211111222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834067103.

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

Adding to 2211111222001 its reverse (1002221111122), we get a palindrome (3213332333123).

The spelling of 2211111222001 in words is "two trillion, two hundred eleven billion, one hundred eleven million, two hundred twenty-two thousand, one".