2101111022211 has 8 divisors (see below), whose sum is σ = 2801491487760. Its totient is φ = 1400735619072.

The previous prime is 2101111022203. The next prime is 2101111022237. The reversal of 2101111022211 is 1122201111012.

It is a happy number.

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

It is not a de Polignac number, because 2101111022211 - 2³ = 2101111022203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2101111022411) 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, 158926 + ... + 2056083.

It is an arithmetic number, because the mean of its divisors is an integer number (350186435970).

Almost surely, 2^{2101111022211} is an apocalyptic number.

2101111022211 is a deficient number, since it is larger than the sum of its proper divisors (700380465549).

2101111022211 is a wasteful number, since it uses less digits than its factorization.

2101111022211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531205.

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

Adding to 2101111022211 its reverse (1122201111012), we get a palindrome (3223312133223).

The spelling of 2101111022211 in words is "two trillion, one hundred one billion, one hundred eleven million, twenty-two thousand, two hundred eleven".