2132210081 has 2 divisors, whose sum is σ = 2132210082. Its totient is φ = 2132210080.

The previous prime is 2132210021. The next prime is 2132210117. The reversal of 2132210081 is 1800122312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2084379025 + 47831056 = 45655^2 + 6916^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2132210081 is a prime.

It is a super-2 number, since 2×2132210081² = 9092639659036053122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2132210021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066105040 + 1066105041.

It is an arithmetic number, because the mean of its divisors is an integer number (1066105041).

Almost surely, 2^2132210081 is an apocalyptic number.

It is an amenable number.

2132210081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132210081 is an equidigital number, since it uses as much as digits as its factorization.

2132210081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 2132210081 is about 46175.8603709774. The cubic root of 2132210081 is about 1287.0932047666.

Adding to 2132210081 its reverse (1800122312), we get a palindrome (3932332393).

The spelling of 2132210081 in words is "two billion, one hundred thirty-two million, two hundred ten thousand, eighty-one".