111012021000012 has 48 divisors (see below), whose sum is σ = 282581964790272. Its totient is φ = 33639302633280.

The previous prime is 111012020999987. The next prime is 111012021000037. The reversal of 111012021000012 is 210000120210111.

It is an interprime number because it is at equal distance from previous prime (111012020999987) and next prime (111012021000037).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2445508 + ... + 15099819.

It is an arithmetic number, because the mean of its divisors is an integer number (5887124266464).

Almost surely, 2^{111012021000012} is an apocalyptic number.

111012021000012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111012021000012 is an abundant number, since it is smaller than the sum of its proper divisors (171569943790260).

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

111012021000012 is a wasteful number, since it uses less digits than its factorization.

111012021000012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17593278 (or 17593276 counting only the distinct ones).

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

Adding to 111012021000012 its reverse (210000120210111), we get a palindrome (321012141210123).

The spelling of 111012021000012 in words is "one hundred eleven trillion, twelve billion, twenty-one million, twelve", and thus it is an aban number.