12200021022 has 128 divisors (see below), whose sum is σ = 28934184960. Its totient is φ = 3357889920.

The previous prime is 12200020999. The next prime is 12200021027. The reversal of 12200021022 is 22012000221.

It is a super-3 number, since 3×12200021022³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12200020989 and 12200021007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200021027) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 45353104 + ... + 45353372.

It is an arithmetic number, because the mean of its divisors is an integer number (226048320).

Almost surely, 2^12200021022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12200021022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14467092480).

12200021022 is an abundant number, since it is smaller than the sum of its proper divisors (16734163938).

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

12200021022 is a wasteful number, since it uses less digits than its factorization.

12200021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646.

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

Adding to 12200021022 its reverse (22012000221), we get a palindrome (34212021243).

The spelling of 12200021022 in words is "twelve billion, two hundred million, twenty-one thousand, twenty-two".