112010120021 has 4 divisors (see below), whose sum is σ = 114393314112. Its totient is φ = 109626925932.

The previous prime is 112010120009. The next prime is 112010120039. The reversal of 112010120021 is 120021010211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120021010211 = 211241 ⋅568171.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112010120021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112010119984 and 112010120011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112010120041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1191596975 + ... + 1191597068.

It is an arithmetic number, because the mean of its divisors is an integer number (28598328528).

Almost surely, 2^112010120021 is an apocalyptic number.

It is an amenable number.

112010120021 is a deficient number, since it is larger than the sum of its proper divisors (2383194091).

112010120021 is an equidigital number, since it uses as much as digits as its factorization.

112010120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2383194090.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 112010120021 its reverse (120021010211), we get a palindrome (232031130232).

The spelling of 112010120021 in words is "one hundred twelve billion, ten million, one hundred twenty thousand, twenty-one".