2100221022101 has 4 divisors (see below), whose sum is σ = 2100417996192. Its totient is φ = 2100024048012.

The previous prime is 2100221021989. The next prime is 2100221022187. The reversal of 2100221022101 is 1012201220012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2100221022101 - 2¹⁰ = 2100221021077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100221022901) 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, 98471051 + ... + 98492376.

It is an arithmetic number, because the mean of its divisors is an integer number (525104499048).

Almost surely, 2^{2100221022101} is an apocalyptic number.

It is an amenable number.

2100221022101 is a deficient number, since it is larger than the sum of its proper divisors (196974091).

2100221022101 is a wasteful number, since it uses less digits than its factorization.

2100221022101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196974090.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2100221022101 its reverse (1012201220012), we get a palindrome (3112422242113).

The spelling of 2100221022101 in words is "two trillion, one hundred billion, two hundred twenty-one million, twenty-two thousand, one hundred one".