10021112101109 has 4 divisors (see below), whose sum is σ = 10133708866380. Its totient is φ = 9908515335840.

The previous prime is 10021112101069. The next prime is 10021112101181. The reversal of 10021112101109 is 90110121112001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5065492942225 + 4955619158884 = 2250665^2 + 2226122^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021112101109 - 2¹⁶ = 10021112035573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021112101309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56298382502 + ... + 56298382679.

It is an arithmetic number, because the mean of its divisors is an integer number (2533427216595).

Almost surely, 2^{10021112101109} is an apocalyptic number.

It is an amenable number.

10021112101109 is a deficient number, since it is larger than the sum of its proper divisors (112596765271).

10021112101109 is an equidigital number, since it uses as much as digits as its factorization.

10021112101109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112596765270.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 10021112101109 in words is "ten trillion, twenty-one billion, one hundred twelve million, one hundred one thousand, one hundred nine".