220022100012 has 96 divisors (see below), whose sum is σ = 603605124864. Its totient is φ = 61496928000.

The previous prime is 220022099993. The next prime is 220022100029. The reversal of 220022100012 is 210001220022.

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

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, 2193762 + ... + 2291862.

It is an arithmetic number, because the mean of its divisors is an integer number (6287553384).

Almost surely, 2^220022100012 is an apocalyptic number.

220022100012 is a gapful number since it is divisible by the number (22) 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 220022100012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (301802562432).

220022100012 is an abundant number, since it is smaller than the sum of its proper divisors (383583024852).

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

220022100012 is a wasteful number, since it uses less digits than its factorization.

220022100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99439 (or 99437 counting only the distinct ones).

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

Adding to 220022100012 its reverse (210001220022), we get a palindrome (430023320034).

The spelling of 220022100012 in words is "two hundred twenty billion, twenty-two million, one hundred thousand, twelve".