2100221333111 has 4 divisors (see below), whose sum is σ = 2291150545224. Its totient is φ = 1909292121000.

The previous prime is 2100221333107. The next prime is 2100221333117. The reversal of 2100221333111 is 1113331220012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2100221333111 - 2² = 2100221333107 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 (2100221333117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95464606040 + ... + 95464606061.

It is an arithmetic number, because the mean of its divisors is an integer number (572787636306).

Almost surely, 2^{2100221333111} is an apocalyptic number.

2100221333111 is a deficient number, since it is larger than the sum of its proper divisors (190929212113).

2100221333111 is a wasteful number, since it uses less digits than its factorization.

2100221333111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190929212112.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2100221333111 its reverse (1113331220012), we get a palindrome (3213552553123).

The spelling of 2100221333111 in words is "two trillion, one hundred billion, two hundred twenty-one million, three hundred thirty-three thousand, one hundred eleven".