2102301132221 has 2 divisors, whose sum is σ = 2102301132222. Its totient is φ = 2102301132220.

The previous prime is 2102301132199. The next prime is 2102301132227. The reversal of 2102301132221 is 1222311032012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1976875368196 + 125425764025 = 1406014^2 + 354155^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102301132221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2102301132193 and 2102301132202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102301132227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051150566110 + 1051150566111.

It is an arithmetic number, because the mean of its divisors is an integer number (1051150566111).

Almost surely, 2^{2102301132221} is an apocalyptic number.

It is an amenable number.

2102301132221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102301132221 is an equidigital number, since it uses as much as digits as its factorization.

2102301132221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2102301132221 its reverse (1222311032012), we get a palindrome (3324612164233).

The spelling of 2102301132221 in words is "two trillion, one hundred two billion, three hundred one million, one hundred thirty-two thousand, two hundred twenty-one".