2212064681 has 4 divisors (see below), whose sum is σ = 2212297872. Its totient is φ = 2211831492.

The previous prime is 2212064663. The next prime is 2212064693. The reversal of 2212064681 is 1864602122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2212064681 - 2¹⁴ = 2212048297 is a prime.

It is a super-2 number, since 2×2212064681² = 9786460305855263522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212024681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101735 + ... + 121548.

It is an arithmetic number, because the mean of its divisors is an integer number (553074468).

Almost surely, 2^2212064681 is an apocalyptic number.

It is an amenable number.

2212064681 is a deficient number, since it is larger than the sum of its proper divisors (233191).

2212064681 is an equidigital number, since it uses as much as digits as its factorization.

2212064681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233190.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 2212064681 is about 47032.5916891681. The cubic root of 2212064681 is about 1302.9645718087.

The spelling of 2212064681 in words is "two billion, two hundred twelve million, sixty-four thousand, six hundred eighty-one".