221110002101212 has 24 divisors (see below), whose sum is σ = 468232945627104. Its totient is φ = 89187227738112.

The previous prime is 221110002101207. The next prime is 221110002101239. The reversal of 221110002101212 is 212101200011122.

221110002101212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232258405093 + ... + 232258406044.

It is an arithmetic number, because the mean of its divisors is an integer number (19509706067796).

Almost surely, 2^{221110002101212} is an apocalyptic number.

It is an amenable number.

221110002101212 is an abundant number, since it is smaller than the sum of its proper divisors (247122943525892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221110002101212 is a wasteful number, since it uses less digits than its factorization.

221110002101212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464516811165 (or 464516811163 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221110002101212 its reverse (212101200011122), we get a palindrome (433211202112334).

The spelling of 221110002101212 in words is "two hundred twenty-one trillion, one hundred ten billion, two million, one hundred one thousand, two hundred twelve".