112001001220021 has 8 divisors (see below), whose sum is σ = 118591395314904. Its totient is φ = 105410840448000.

The previous prime is 112001001219959. The next prime is 112001001220057. The reversal of 112001001220021 is 120022100100211.

It can be written as a sum of positive squares in 4 ways, for example, as 105034328100 + 111895966891921 = 324090^2 + 10578089^2 .

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 112001001220021 - 2³⁹ = 111451245406133 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112001001219983 and 112001001220010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112001001220421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57341940 + ... + 59262973.

It is an arithmetic number, because the mean of its divisors is an integer number (14823924414363).

Almost surely, 2^{112001001220021} is an apocalyptic number.

It is an amenable number.

112001001220021 is a deficient number, since it is larger than the sum of its proper divisors (6590394094883).

112001001220021 is a wasteful number, since it uses less digits than its factorization.

112001001220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116661431.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 112001001220021 its reverse (120022100100211), we get a palindrome (232023101320232).

The spelling of 112001001220021 in words is "one hundred twelve trillion, one billion, one million, two hundred twenty thousand, twenty-one".