222201201220 has 12 divisors (see below), whose sum is σ = 466622522604. Its totient is φ = 88880480480.

The previous prime is 222201201191. The next prime is 222201201241. The reversal of 222201201220 is 22102102222.

222201201220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 61156300804 + 161044900416 = 247298^2 + 401304^2 .

It is a super-2 number, since 2×222201201220² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 222201201194 and 222201201203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555030011 + ... + 5555030050.

It is an arithmetic number, because the mean of its divisors is an integer number (38885210217).

Almost surely, 2^222201201220 is an apocalyptic number.

222201201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222201201220 is an abundant number, since it is smaller than the sum of its proper divisors (244421321384).

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

222201201220 is a wasteful number, since it uses less digits than its factorization.

222201201220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110060070 (or 11110060068 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222201201220 its reverse (22102102222), we get a palindrome (244303303442).

The spelling of 222201201220 in words is "two hundred twenty-two billion, two hundred one million, two hundred one thousand, two hundred twenty".