222122220220020 has 48 divisors (see below), whose sum is σ = 622037127257280. Its totient is φ = 59223552950016.

The previous prime is 222122220220007. The next prime is 222122220220037. The reversal of 222122220220020 is 20022022221222.

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, 282075690 + ... + 282862049.

It is an arithmetic number, because the mean of its divisors is an integer number (12959106817860).

Almost surely, 2^{222122220220020} is an apocalyptic number.

222122220220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222122220220020 is an abundant number, since it is smaller than the sum of its proper divisors (399914907037260).

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

222122220220020 is a wasteful number, since it uses less digits than its factorization.

222122220220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564944304 (or 564944302 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 222122220220020 its reverse (20022022221222), we get a palindrome (242144242441242).

The spelling of 222122220220020 in words is "two hundred twenty-two trillion, one hundred twenty-two billion, two hundred twenty million, two hundred twenty thousand, twenty".