11222111122001 has 8 divisors (see below), whose sum is σ = 12238329559680. Its totient is φ = 10227746844432.

The previous prime is 11222111121997. The next prime is 11222111122021. The reversal of 11222111122001 is 10022111122211.

11222111122001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11222111122001 - 2² = 11222111121997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11222111122021) 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, 5463538955 + ... + 5463541008.

It is an arithmetic number, because the mean of its divisors is an integer number (1529791194960).

Almost surely, 2^{11222111122001} is an apocalyptic number.

It is an amenable number.

11222111122001 is a deficient number, since it is larger than the sum of its proper divisors (1016218437679).

11222111122001 is a wasteful number, since it uses less digits than its factorization.

11222111122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10927080055.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11222111122001 its reverse (10022111122211), we get a palindrome (21244222244212).

The spelling of 11222111122001 in words is "eleven trillion, two hundred twenty-two billion, one hundred eleven million, one hundred twenty-two thousand, one".