2102200111021 has 8 divisors (see below), whose sum is σ = 2216214552384. Its totient is φ = 1990070206080.

The previous prime is 2102200110991. The next prime is 2102200111027. The reversal of 2102200111021 is 1201110022012.

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 2102200111021 - 2³¹ = 2100052627373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102200110992 and 2102200111010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102200111027) 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, 471131815 + ... + 471136276.

It is an arithmetic number, because the mean of its divisors is an integer number (277026819048).

Almost surely, 2^{2102200111021} is an apocalyptic number.

It is an amenable number.

2102200111021 is a deficient number, since it is larger than the sum of its proper divisors (114014441363).

2102200111021 is an equidigital number, since it uses as much as digits as its factorization.

2102200111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942268211.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2102200111021 its reverse (1201110022012), we get a palindrome (3303310133033).

The spelling of 2102200111021 in words is "two trillion, one hundred two billion, two hundred million, one hundred eleven thousand, twenty-one".