2102213303381 has 2 divisors, whose sum is σ = 2102213303382. Its totient is φ = 2102213303380.

The previous prime is 2102213303369. The next prime is 2102213303383. The reversal of 2102213303381 is 1833033122012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1597354738225 + 504858565156 = 1263865^2 + 710534^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102213303381 - 2¹⁴ = 2102213286997 is a prime.

It is a super-2 number, since 2×2102213303381² (a number of 25 digits) contains 22 as substring.

Together with 2102213303383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102213303383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051106651690 + 1051106651691.

It is an arithmetic number, because the mean of its divisors is an integer number (1051106651691).

Almost surely, 2^{2102213303381} is an apocalyptic number.

It is an amenable number.

2102213303381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102213303381 is an equidigital number, since it uses as much as digits as its factorization.

2102213303381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 2102213303381 its reverse (1833033122012), we get a palindrome (3935246425393).

The spelling of 2102213303381 in words is "two trillion, one hundred two billion, two hundred thirteen million, three hundred three thousand, three hundred eighty-one".