22011201222220 has 192 divisors, whose sum is σ = 54564549451776. Its totient is φ = 7302349532160.

The previous prime is 22011201222209. The next prime is 22011201222221. The reversal of 22011201222220 is 2222210211022.

It is not an unprimeable number, because it can be changed into a prime (22011201222221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 415428130 + ... + 415481110.

It is an arithmetic number, because the mean of its divisors is an integer number (284190361728).

Almost surely, 2^{22011201222220} is an apocalyptic number.

22011201222220 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 22011201222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27282274725888).

22011201222220 is an abundant number, since it is smaller than the sum of its proper divisors (32553348229556).

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

22011201222220 is a wasteful number, since it uses less digits than its factorization.

22011201222220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53760 (or 53758 counting only the distinct ones).

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

Adding to 22011201222220 its reverse (2222210211022), we get a palindrome (24233411433242).

The spelling of 22011201222220 in words is "twenty-two trillion, eleven billion, two hundred one million, two hundred twenty-two thousand, two hundred twenty".