222001120020 has 24 divisors (see below), whose sum is σ = 621603136224. Its totient is φ = 59200298656.

The previous prime is 222001119997. The next prime is 222001120031. The reversal of 222001120020 is 20021100222.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 222001119978 and 222001120005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1850009274 + ... + 1850009393.

It is an arithmetic number, because the mean of its divisors is an integer number (25900130676).

Almost surely, 2^222001120020 is an apocalyptic number.

222001120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222001120020 is an abundant number, since it is smaller than the sum of its proper divisors (399602016204).

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

222001120020 is a wasteful number, since it uses less digits than its factorization.

222001120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3700018679 (or 3700018677 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 222001120020 its reverse (20021100222), we get a palindrome (242022220242).

The spelling of 222001120020 in words is "two hundred twenty-two billion, one million, one hundred twenty thousand, twenty".