2100302212081 has 2 divisors, whose sum is σ = 2100302212082. Its totient is φ = 2100302212080.

The previous prime is 2100302212037. The next prime is 2100302212093. The reversal of 2100302212081 is 1802122030012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1683039182400 + 417263029681 = 1297320^2 + 645959^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100302212081 - 2¹¹ = 2100302210033 is a prime.

It is a super-2 number, since 2×2100302212081² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2100302212181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050151106040 + 1050151106041.

It is an arithmetic number, because the mean of its divisors is an integer number (1050151106041).

Almost surely, 2^{2100302212081} is an apocalyptic number.

It is an amenable number.

2100302212081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100302212081 is an equidigital number, since it uses as much as digits as its factorization.

2100302212081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 2100302212081 its reverse (1802122030012), we get a palindrome (3902424242093).

The spelling of 2100302212081 in words is "two trillion, one hundred billion, three hundred two million, two hundred twelve thousand, eighty-one".