10020122220 has 96 divisors (see below), whose sum is σ = 28809930240. Its totient is φ = 2601146880.

The previous prime is 10020122209. The next prime is 10020122237. The reversal of 10020122220 is 2222102001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10020122196 and 10020122205.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 350880 + ... + 378360.

It is an arithmetic number, because the mean of its divisors is an integer number (300103440).

Almost surely, 2^10020122220 is an apocalyptic number.

10020122220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10020122220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14404965120).

10020122220 is an abundant number, since it is smaller than the sum of its proper divisors (18789808020).

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

10020122220 is a wasteful number, since it uses less digits than its factorization.

10020122220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27655 (or 27653 counting only the distinct ones).

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

Adding to 10020122220 its reverse (2222102001), we get a palindrome (12242224221).

The spelling of 10020122220 in words is "ten billion, twenty million, one hundred twenty-two thousand, two hundred twenty".