10020221121 has 32 divisors (see below), whose sum is σ = 14189486080. Its totient is φ = 6272121600.

The previous prime is 10020221077. The next prime is 10020221177. The reversal of 10020221121 is 12112202001.

It is not a de Polignac number, because 10020221121 - 2¹⁴ = 10020204737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10020221097 and 10020221106.

It is not an unprimeable number, because it can be changed into a prime (10020221191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3061716 + ... + 3064986.

It is an arithmetic number, because the mean of its divisors is an integer number (443421440).

Almost surely, 2^10020221121 is an apocalyptic number.

It is an amenable number.

10020221121 is a deficient number, since it is larger than the sum of its proper divisors (4169264959).

10020221121 is a wasteful number, since it uses less digits than its factorization.

10020221121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3757.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10020221121 its reverse (12112202001), we get a palindrome (22132423122).

The spelling of 10020221121 in words is "ten billion, twenty million, two hundred twenty-one thousand, one hundred twenty-one".