10020220112221 has 16 divisors (see below), whose sum is σ = 11204145338688. Its totient is φ = 8884486512000.

The previous prime is 10020220112197. The next prime is 10020220112249. The reversal of 10020220112221 is 12221102202001.

It is a happy number.

It is not a de Polignac number, because 10020220112221 - 2²⁷ = 10020085894493 is a prime.

It is a super-2 number, since 2×10020220112221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020220112195 and 10020220112204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020220112321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67232280 + ... + 67381153.

It is an arithmetic number, because the mean of its divisors is an integer number (700259083668).

Almost surely, 2^{10020220112221} is an apocalyptic number.

10020220112221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10020220112221 is a deficient number, since it is larger than the sum of its proper divisors (1183925226467).

10020220112221 is a wasteful number, since it uses less digits than its factorization.

10020220112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134613612.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10020220112221 its reverse (12221102202001), we get a palindrome (22241322314222).

The spelling of 10020220112221 in words is "ten trillion, twenty billion, two hundred twenty million, one hundred twelve thousand, two hundred twenty-one".