1222310300220 has 144 divisors (see below), whose sum is σ = 3846951789408. Its totient is φ = 325783607040.

The previous prime is 1222310300207. The next prime is 1222310300261. The reversal of 1222310300220 is 220030132221.

1222310300220 is a `hidden beast` number, since 12 + 22 + 310 + 300 + 2 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1222310300193 and 1222310300202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9642450 + ... + 9768390.

It is an arithmetic number, because the mean of its divisors is an integer number (26714942982).

Almost surely, 2^{1222310300220} is an apocalyptic number.

1222310300220 is a gapful number since it is divisible by the number (10) 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 1222310300220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1923475894704).

1222310300220 is an abundant number, since it is smaller than the sum of its proper divisors (2624641489188).

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

1222310300220 is a wasteful number, since it uses less digits than its factorization.

1222310300220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127962 (or 127948 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1222310300220 its reverse (220030132221), we get a palindrome (1442340432441).

The spelling of 1222310300220 in words is "one trillion, two hundred twenty-two billion, three hundred ten million, three hundred thousand, two hundred twenty".