1222201110220 has 24 divisors (see below), whose sum is σ = 2577929047344. Its totient is φ = 486726783936.

The previous prime is 1222201110217. The next prime is 1222201110233. The reversal of 1222201110220 is 220111022221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1222201110194 and 1222201110203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134599107 + ... + 134608186.

It is an arithmetic number, because the mean of its divisors is an integer number (107413710306).

Almost surely, 2^{1222201110220} is an apocalyptic number.

1222201110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222201110220 is an abundant number, since it is smaller than the sum of its proper divisors (1355727937124).

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

1222201110220 is a wasteful number, since it uses less digits than its factorization.

1222201110220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269207529 (or 269207527 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1222201110220 its reverse (220111022221), we get a palindrome (1442312132441).

The spelling of 1222201110220 in words is "one trillion, two hundred twenty-two billion, two hundred one million, one hundred ten thousand, two hundred twenty".