212221202020112 has 10 divisors (see below), whose sum is σ = 411178578913998. Its totient is φ = 106110601010048.

The previous prime is 212221202020049. The next prime is 212221202020117. The reversal of 212221202020112 is 211020202122212.

It can be written as a sum of positive squares in only one way, i.e., 135046804289296 + 77174397730816 = 11620964^2 + 8784896^2 .

It is a super-2 number, since 2×212221202020112² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212221202020117) 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 as a sum of consecutive naturals, namely, 6631912563113 + ... + 6631912563144.

Almost surely, 2^{212221202020112} is an apocalyptic number.

It is an amenable number.

212221202020112 is a deficient number, since it is larger than the sum of its proper divisors (198957376893886).

212221202020112 is a wasteful number, since it uses less digits than its factorization.

212221202020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13263825126265 (or 13263825126259 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 212221202020112 its reverse (211020202122212), we get a palindrome (423241404142324).

The spelling of 212221202020112 in words is "two hundred twelve trillion, two hundred twenty-one billion, two hundred two million, twenty thousand, one hundred twelve".