111221101202012 has 12 divisors (see below), whose sum is σ = 194638007697336. Its totient is φ = 55610241859920.

The previous prime is 111221101202011. The next prime is 111221101202021. The reversal of 111221101202012 is 210202101122111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111221101202011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76373783 + ... + 77816430.

It is an arithmetic number, because the mean of its divisors is an integer number (16219833974778).

Almost surely, 2^{111221101202012} is an apocalyptic number.

It is an amenable number.

111221101202012 is a deficient number, since it is larger than the sum of its proper divisors (83416906495324).

111221101202012 is a wasteful number, since it uses less digits than its factorization.

111221101202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154370548 (or 154370546 counting only the distinct ones).

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

Adding to 111221101202012 its reverse (210202101122111), we get a palindrome (321423202324123).

The spelling of 111221101202012 in words is "one hundred eleven trillion, two hundred twenty-one billion, one hundred one million, two hundred two thousand, twelve".