1112101000021 has 8 divisors (see below), whose sum is σ = 1213276680288. Its totient is φ = 1010937918000.

The previous prime is 1112100999973. The next prime is 1112101000027. The reversal of 1112101000021 is 1200001012111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1112101000021 - 2²⁵ = 1112067445589 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1112100999971 and 1112101000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112101000027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2964510 + ... + 3318511.

It is an arithmetic number, because the mean of its divisors is an integer number (151659585036).

Almost surely, 2^{1112101000021} is an apocalyptic number.

1112101000021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1112101000021 is a deficient number, since it is larger than the sum of its proper divisors (101175680267).

1112101000021 is a wasteful number, since it uses less digits than its factorization.

1112101000021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6299123.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1112101000021 its reverse (1200001012111), we get a palindrome (2312102012132).

The spelling of 1112101000021 in words is "one trillion, one hundred twelve billion, one hundred one million, twenty-one", and thus it is an aban number.