2111101100221 has 8 divisors (see below), whose sum is σ = 2179394568704. Its totient is φ = 2042819721360.

The previous prime is 2111101100183. The next prime is 2111101100233. The reversal of 2111101100221 is 1220011011112.

It is a happy number.

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 2111101100221 - 2³⁵ = 2076741361853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111101100281) 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, 2666850 + ... + 3366643.

It is an arithmetic number, because the mean of its divisors is an integer number (272424321088).

Almost surely, 2^{2111101100221} is an apocalyptic number.

It is an amenable number.

2111101100221 is a deficient number, since it is larger than the sum of its proper divisors (68293468483).

2111101100221 is a wasteful number, since it uses less digits than its factorization.

2111101100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6044811.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 2111101100221 its reverse (1220011011112), we get a palindrome (3331112111333).

The spelling of 2111101100221 in words is "two trillion, one hundred eleven billion, one hundred one million, one hundred thousand, two hundred twenty-one".