10110120220021 has 4 divisors (see below), whose sum is σ = 10383366712492. Its totient is φ = 9836873727552.

The previous prime is 10110120219971. The next prime is 10110120220033. The reversal of 10110120220021 is 12002202101101.

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 3590835502500 + 6519284717521 = 1894950^2 + 2553289^2 .

It is not a de Polignac number, because 10110120220021 - 2¹⁹ = 10110119695733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10110120219983 and 10110120220010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10110120200021) 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, 136623246180 + ... + 136623246253.

It is an arithmetic number, because the mean of its divisors is an integer number (2595841678123).

Almost surely, 2^{10110120220021} is an apocalyptic number.

It is an amenable number.

10110120220021 is a deficient number, since it is larger than the sum of its proper divisors (273246492471).

10110120220021 is an equidigital number, since it uses as much as digits as its factorization.

10110120220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273246492470.

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

Adding to 10110120220021 its reverse (12002202101101), we get a palindrome (22112322321122).

The spelling of 10110120220021 in words is "ten trillion, one hundred ten billion, one hundred twenty million, two hundred twenty thousand, twenty-one".