27710220212 has 12 divisors (see below), whose sum is σ = 48549741156. Its totient is φ = 13838865600.

The previous prime is 27710220211. The next prime is 27710220253. The reversal of 27710220212 is 21202201772.

It can be written as a sum of positive squares in 2 ways, for example, as 1845217936 + 25865002276 = 42956^2 + 160826^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27710220211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4057289 + ... + 4064112.

It is an arithmetic number, because the mean of its divisors is an integer number (4045811763).

Almost surely, 2^27710220212 is an apocalyptic number.

It is an amenable number.

27710220212 is a deficient number, since it is larger than the sum of its proper divisors (20839520944).

27710220212 is a wasteful number, since it uses less digits than its factorization.

27710220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8122258 (or 8122256 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 26.

Adding to 27710220212 its reverse (21202201772), we get a palindrome (48912421984).

The spelling of 27710220212 in words is "twenty-seven billion, seven hundred ten million, two hundred twenty thousand, two hundred twelve".