10021120221021 has 64 divisors (see below), whose sum is σ = 16773994062336. Its totient is φ = 5180707123200.

The previous prime is 10021120221019. The next prime is 10021120221031. The reversal of 10021120221021 is 12012202112001.

It is not a de Polignac number, because 10021120221021 - 2¹ = 10021120221019 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021120221011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3608745 + ... + 5750241.

It is an arithmetic number, because the mean of its divisors is an integer number (262093657224).

Almost surely, 2^{10021120221021} is an apocalyptic number.

It is an amenable number.

10021120221021 is a deficient number, since it is larger than the sum of its proper divisors (6752873841315).

10021120221021 is a wasteful number, since it uses less digits than its factorization.

10021120221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2141862.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10021120221021 its reverse (12012202112001), we get a palindrome (22033322333022).

The spelling of 10021120221021 in words is "ten trillion, twenty-one billion, one hundred twenty million, two hundred twenty-one thousand, twenty-one".