1222023330220 has 192 divisors, whose sum is σ = 3514304102400. Its totient is φ = 345154487040.

The previous prime is 1222023330211. The next prime is 1222023330221. The reversal of 1222023330220 is 220333202221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1222023330191 and 1222023330200.

It is not an unprimeable number, because it can be changed into a prime (1222023330221) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 234940 + ... + 1580899.

It is an arithmetic number, because the mean of its divisors is an integer number (18303667200).

Almost surely, 2^{1222023330220} is an apocalyptic number.

1222023330220 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 1222023330220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1757152051200).

1222023330220 is an abundant number, since it is smaller than the sum of its proper divisors (2292280772180).

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

1222023330220 is a wasteful number, since it uses less digits than its factorization.

1222023330220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1815908 (or 1815906 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 1222023330220 its reverse (220333202221), we get a palindrome (1442356532441).

The spelling of 1222023330220 in words is "one trillion, two hundred twenty-two billion, twenty-three million, three hundred thirty thousand, two hundred twenty".