2201222112220 has 192 divisors, whose sum is σ = 5233745664000. Its totient is φ = 772707962880.

The previous prime is 2201222112209. The next prime is 2201222112227. The reversal of 2201222112220 is 222112221022.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201222112227) 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, 145297206 + ... + 145312354.

It is an arithmetic number, because the mean of its divisors is an integer number (27259092000).

Almost surely, 2^{2201222112220} is an apocalyptic number.

2201222112220 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 2201222112220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2616872832000).

2201222112220 is an abundant number, since it is smaller than the sum of its proper divisors (3032523551780).

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

2201222112220 is a wasteful number, since it uses less digits than its factorization.

2201222112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15548 (or 15546 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2201222112220 its reverse (222112221022), we get a palindrome (2423334333242).

The spelling of 2201222112220 in words is "two trillion, two hundred one billion, two hundred twenty-two million, one hundred twelve thousand, two hundred twenty".