2102032322221 has 4 divisors (see below), whose sum is σ = 2263727116252. Its totient is φ = 1940337528192.

The previous prime is 2102032322209. The next prime is 2102032322233. The reversal of 2102032322221 is 1222232302012.

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

It is an interprime number because it is at equal distance from previous prime (2102032322209) and next prime (2102032322233).

It can be written as a sum of positive squares in 2 ways, for example, as 1308017666596 + 794014655625 = 1143686^2 + 891075^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102032322221 - 2¹⁹ = 2102031797933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102032322192 and 2102032322201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102032322281) 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, 80847396996 + ... + 80847397021.

It is an arithmetic number, because the mean of its divisors is an integer number (565931779063).

Almost surely, 2^{2102032322221} is an apocalyptic number.

It is an amenable number.

2102032322221 is a deficient number, since it is larger than the sum of its proper divisors (161694794031).

2102032322221 is a wasteful number, since it uses less digits than its factorization.

2102032322221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161694794030.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 2102032322221 its reverse (1222232302012), we get a palindrome (3324264624233).

The spelling of 2102032322221 in words is "two trillion, one hundred two billion, thirty-two million, three hundred twenty-two thousand, two hundred twenty-one".