222120212020 has 48 divisors (see below), whose sum is σ = 538366647168. Its totient is φ = 75401481600.

The previous prime is 222120212003. The next prime is 222120212033. The reversal of 222120212020 is 20212021222.

It is a junction number, because it is equal to n+sod(n) for n = 222120211985 and 222120212003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7840182 + ... + 7868461.

It is an arithmetic number, because the mean of its divisors is an integer number (11215971816).

Almost surely, 2^222120212020 is an apocalyptic number.

222120212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222120212020 is an abundant number, since it is smaller than the sum of its proper divisors (316246435148).

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

222120212020 is a wasteful number, since it uses less digits than its factorization.

222120212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15708760 (or 15708758 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 222120212020 its reverse (20212021222), we get a palindrome (242332233242).

The spelling of 222120212020 in words is "two hundred twenty-two billion, one hundred twenty million, two hundred twelve thousand, twenty".