222111120020 has 24 divisors (see below), whose sum is σ = 470792546784. Its totient is φ = 88014125216.

The previous prime is 222111120019. The next prime is 222111120061. The reversal of 222111120020 is 20021111222.

It is a junction number, because it is equal to n+sod(n) for n = 222111119977 and 222111120004.

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, 51892982 + ... + 51897261.

It is an arithmetic number, because the mean of its divisors is an integer number (19616356116).

Almost surely, 2^222111120020 is an apocalyptic number.

222111120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222111120020 is an abundant number, since it is smaller than the sum of its proper divisors (248681426764).

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

222111120020 is a wasteful number, since it uses less digits than its factorization.

222111120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103790359 (or 103790357 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 222111120020 its reverse (20021111222), we get a palindrome (242132231242).

The spelling of 222111120020 in words is "two hundred twenty-two billion, one hundred eleven million, one hundred twenty thousand, twenty".