20020101222 has 96 divisors (see below), whose sum is σ = 47925964800. Its totient is φ = 5549100480.

The previous prime is 20020101217. The next prime is 20020101223. The reversal of 20020101222 is 22210102002.

It is a junction number, because it is equal to n+sod(n) for n = 20020101198 and 20020101207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020101223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 375003 + ... + 425049.

It is an arithmetic number, because the mean of its divisors is an integer number (499228800).

Almost surely, 2^20020101222 is an apocalyptic number.

20020101222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20020101222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23962982400).

20020101222 is an abundant number, since it is smaller than the sum of its proper divisors (27905863578).

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

20020101222 is a wasteful number, since it uses less digits than its factorization.

20020101222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50122 (or 50111 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20020101222 its reverse (22210102002), we get a palindrome (42230203224).

The spelling of 20020101222 in words is "twenty billion, twenty million, one hundred one thousand, two hundred twenty-two".