222220111222020 has 96 divisors (see below), whose sum is σ = 626766948089856. Its totient is φ = 58825314662400.

The previous prime is 222220111222019. The next prime is 222220111222079. The reversal of 222220111222020 is 20222111022222.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 761609760 + ... + 761901480.

It is an arithmetic number, because the mean of its divisors is an integer number (6528822375936).

Almost surely, 2^{222220111222020} is an apocalyptic number.

222220111222020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222220111222020 is an abundant number, since it is smaller than the sum of its proper divisors (404546836867836).

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

222220111222020 is a wasteful number, since it uses less digits than its factorization.

222220111222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384541 (or 384539 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 222220111222020 its reverse (20222111022222), we get a palindrome (242442222244242).

The spelling of 222220111222020 in words is "two hundred twenty-two trillion, two hundred twenty billion, one hundred eleven million, two hundred twenty-two thousand, twenty".