111012000121020 has 24 divisors (see below), whose sum is σ = 310833600339024. Its totient is φ = 29603200032256.

The previous prime is 111012000121013. The next prime is 111012000121031. The reversal of 111012000121020 is 20121000210111.

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

It is a junction number, because it is equal to n+sod(n) for n = 111012000120987 and 111012000121005.

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, 925100000949 + ... + 925100001068.

It is an arithmetic number, because the mean of its divisors is an integer number (12951400014126).

Almost surely, 2^{111012000121020} is an apocalyptic number.

111012000121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111012000121020 is an abundant number, since it is smaller than the sum of its proper divisors (199821600218004).

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

111012000121020 is a wasteful number, since it uses less digits than its factorization.

111012000121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850200002029 (or 1850200002027 counting only the distinct ones).

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

Adding to 111012000121020 its reverse (20121000210111), we get a palindrome (131133000331131).

The spelling of 111012000121020 in words is "one hundred eleven trillion, twelve billion, one hundred twenty-one thousand, twenty".