220122223100 has 72 divisors (see below), whose sum is σ = 515457873168. Its totient is φ = 81110131200.

The previous prime is 220122223049. The next prime is 220122223103. The reversal of 220122223100 is 1322221022.

220122223100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×220122223100² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220122223103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 465872 + ... + 810728.

Almost surely, 2^220122223100 is an apocalyptic number.

220122223100 is a gapful number since it is divisible by the number (20) 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 220122223100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257728936584).

220122223100 is an abundant number, since it is smaller than the sum of its proper divisors (295335650068).

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

220122223100 is a wasteful number, since it uses less digits than its factorization.

220122223100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345375 (or 345368 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 220122223100 its reverse (1322221022), we get a palindrome (221444444122).

The spelling of 220122223100 in words is "two hundred twenty billion, one hundred twenty-two million, two hundred twenty-three thousand, one hundred".