20221101020 has 12 divisors (see below), whose sum is σ = 42464312184. Its totient is φ = 8088440400.

The previous prime is 20221101013. The next prime is 20221101029. The reversal of 20221101020 is 2010112202.

It is a happy number.

It is a super-2 number, since 2×20221101020² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20221100992 and 20221101010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221101029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505527506 + ... + 505527545.

It is an arithmetic number, because the mean of its divisors is an integer number (3538692682).

Almost surely, 2^20221101020 is an apocalyptic number.

20221101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221101020 is an abundant number, since it is smaller than the sum of its proper divisors (22243211164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20221101020 is a wasteful number, since it uses less digits than its factorization.

20221101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011055060 (or 1011055058 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20221101020 its reverse (2010112202), we get a palindrome (22231213222).

The spelling of 20221101020 in words is "twenty billion, two hundred twenty-one million, one hundred one thousand, twenty".