2102214152321 has 2 divisors, whose sum is σ = 2102214152322. Its totient is φ = 2102214152320.

The previous prime is 2102214152267. The next prime is 2102214152333. The reversal of 2102214152321 is 1232514122012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1293824351296 + 808389801025 = 1137464^2 + 899105^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102214152321 - 2¹⁴ = 2102214135937 is a prime.

It is not a weakly prime, because it can be changed into another prime (2102214152371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051107076160 + 1051107076161.

It is an arithmetic number, because the mean of its divisors is an integer number (1051107076161).

Almost surely, 2^{2102214152321} is an apocalyptic number.

It is an amenable number.

2102214152321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102214152321 is an equidigital number, since it uses as much as digits as its factorization.

2102214152321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 2102214152321 its reverse (1232514122012), we get a palindrome (3334728274333).

The spelling of 2102214152321 in words is "two trillion, one hundred two billion, two hundred fourteen million, one hundred fifty-two thousand, three hundred twenty-one".