1222220222020 has 96 divisors (see below), whose sum is σ = 2941659979776. Its totient is φ = 417858480000.

The previous prime is 1222220221961. The next prime is 1222220222021. The reversal of 1222220222020 is 202220222221.

It is a super-2 number, since 2×1222220222020² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222220222021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72643329 + ... + 72660151.

It is an arithmetic number, because the mean of its divisors is an integer number (30642291456).

Almost surely, 2^{1222220222020} is an apocalyptic number.

1222220222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222220222020 is an abundant number, since it is smaller than the sum of its proper divisors (1719439757756).

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

1222220222020 is a wasteful number, since it uses less digits than its factorization.

1222220222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18281 (or 18279 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 1222220222020 its reverse (202220222221), we get a palindrome (1424440444241).

The spelling of 1222220222020 in words is "one trillion, two hundred twenty-two billion, two hundred twenty million, two hundred twenty-two thousand, twenty".