22110000201220 has 48 divisors (see below), whose sum is σ = 46639201534128. Its totient is φ = 8804407173120.

The previous prime is 22110000201203. The next prime is 22110000201221. The reversal of 22110000201220 is 2210200001122.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 595542497796 + 21514457703424 = 771714^2 + 4638368^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22110000201220.

It is not an unprimeable number, because it can be changed into a prime (22110000201221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3477460 + ... + 7504180.

It is an arithmetic number, because the mean of its divisors is an integer number (971650031961).

Almost surely, 2^{22110000201220} is an apocalyptic number.

22110000201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22110000201220 is an abundant number, since it is smaller than the sum of its proper divisors (24529201332908).

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

22110000201220 is a wasteful number, since it uses less digits than its factorization.

22110000201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4027960 (or 4027958 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22110000201220 its reverse (2210200001122), we get a palindrome (24320200202342).

The spelling of 22110000201220 in words is "twenty-two trillion, one hundred ten billion, two hundred one thousand, two hundred twenty".