2130010022221 has 4 divisors (see below), whose sum is σ = 2130376449852. Its totient is φ = 2129643594592.

The previous prime is 2130010022219. The next prime is 2130010022263. The reversal of 2130010022221 is 1222200100312.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1399515026121 + 730494996100 = 1183011^2 + 854690^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130010022221 - 2¹ = 2130010022219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2130010022195 and 2130010022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130010029221) 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, 183205096 + ... + 183216721.

It is an arithmetic number, because the mean of its divisors is an integer number (532594112463).

Almost surely, 2^{2130010022221} is an apocalyptic number.

It is an amenable number.

2130010022221 is a deficient number, since it is larger than the sum of its proper divisors (366427631).

2130010022221 is an equidigital number, since it uses as much as digits as its factorization.

2130010022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366427630.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2130010022221 its reverse (1222200100312), we get a palindrome (3352210122533).

The spelling of 2130010022221 in words is "two trillion, one hundred thirty billion, ten million, twenty-two thousand, two hundred twenty-one".