111211201121012 has 12 divisors (see below), whose sum is σ = 194665731311520. Its totient is φ = 55592420746296.

The previous prime is 111211201120993. The next prime is 111211201121023. The reversal of 111211201121012 is 210121102112111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3294934568 + ... + 3294968319.

It is an arithmetic number, because the mean of its divisors is an integer number (16222144275960).

Almost surely, 2^{111211201121012} is an apocalyptic number.

It is an amenable number.

111211201121012 is a deficient number, since it is larger than the sum of its proper divisors (83454530190508).

111211201121012 is a wasteful number, since it uses less digits than its factorization.

111211201121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6589907110 (or 6589907108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111211201121012 its reverse (210121102112111), we get a palindrome (321332303233123).

The spelling of 111211201121012 in words is "one hundred eleven trillion, two hundred eleven billion, two hundred one million, one hundred twenty-one thousand, twelve".