111201111021012 has 48 divisors (see below), whose sum is σ = 259579439508480. Its totient is φ = 37051298758368.

The previous prime is 111201111020957. The next prime is 111201111021019. The reversal of 111201111021012 is 210120111102111.

It is a junction number, because it is equal to n+sod(n) for n = 111201111020982 and 111201111021000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111201111021019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 533329093 + ... + 533537555.

It is an arithmetic number, because the mean of its divisors is an integer number (5407904989760).

Almost surely, 2^{111201111021012} is an apocalyptic number.

111201111021012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111201111021012 is an abundant number, since it is smaller than the sum of its proper divisors (148378328487468).

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

111201111021012 is a wasteful number, since it uses less digits than its factorization.

111201111021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227132 (or 227130 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 111201111021012 its reverse (210120111102111), we get a palindrome (321321222123123).

The spelling of 111201111021012 in words is "one hundred eleven trillion, two hundred one billion, one hundred eleven million, twenty-one thousand, twelve".