2111211122001 has 8 divisors (see below), whose sum is σ = 2822494942080. Its totient is φ = 1403700691632.

The previous prime is 2111211121909. The next prime is 2111211122023. The reversal of 2111211122001 is 1002211121112.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-2111211122001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2111211120001) 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, 943346121 + ... + 943348358.

It is an arithmetic number, because the mean of its divisors is an integer number (352811867760).

Almost surely, 2^{2111211122001} is an apocalyptic number.

It is an amenable number.

2111211122001 is a deficient number, since it is larger than the sum of its proper divisors (711283820079).

2111211122001 is a wasteful number, since it uses less digits than its factorization.

2111211122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1886694855.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 2111211122001 its reverse (1002211121112), we get a palindrome (3113422243113).

The spelling of 2111211122001 in words is "two trillion, one hundred eleven billion, two hundred eleven million, one hundred twenty-two thousand, one".