111020021001012 has 24 divisors (see below), whose sum is σ = 259388917428256. Its totient is φ = 36957787701408.

The previous prime is 111020021000939. The next prime is 111020021001037. The reversal of 111020021001012 is 210100120020111.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 6110736238 + ... + 6110754405.

Almost surely, 2^{111020021001012} is an apocalyptic number.

111020021001012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111020021001012 is an abundant number, since it is smaller than the sum of its proper divisors (148368896427244).

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

111020021001012 is a wasteful number, since it uses less digits than its factorization.

111020021001012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12221491407 (or 12221491405 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111020021001012 its reverse (210100120020111), we get a palindrome (321120141021123).

The spelling of 111020021001012 in words is "one hundred eleven trillion, twenty billion, twenty-one million, one thousand, twelve".