111201210221012 has 24 divisors (see below), whose sum is σ = 197509549438656. Its totient is φ = 54775504286208.

The previous prime is 111201210221009. The next prime is 111201210221027. The reversal of 111201210221012 is 210122012102111.

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, 699158438 + ... + 699317469.

It is an arithmetic number, because the mean of its divisors is an integer number (8229564559944).

Almost surely, 2^{111201210221012} is an apocalyptic number.

It is an amenable number.

111201210221012 is a deficient number, since it is larger than the sum of its proper divisors (86308339217644).

111201210221012 is a wasteful number, since it uses less digits than its factorization.

111201210221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1398476207 (or 1398476205 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111201210221012 its reverse (210122012102111), we get a palindrome (321323222323123).

The spelling of 111201210221012 in words is "one hundred eleven trillion, two hundred one billion, two hundred ten million, two hundred twenty-one thousand, twelve".