222111210020 has 96 divisors (see below), whose sum is σ = 546242780160. Its totient is φ = 74289870720.

The previous prime is 222111210019. The next prime is 222111210077. The reversal of 222111210020 is 20012111222.

222111210020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 222111209977 and 222111210004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 979427 + ... + 1184693.

It is an arithmetic number, because the mean of its divisors is an integer number (5690028960).

Almost surely, 2^222111210020 is an apocalyptic number.

222111210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222111210020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (273121390080).

222111210020 is an abundant number, since it is smaller than the sum of its proper divisors (324131570140).

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

222111210020 is a wasteful number, since it uses less digits than its factorization.

222111210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205473 (or 205471 counting only the distinct ones).

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

Adding to 222111210020 its reverse (20012111222), we get a palindrome (242123321242).

The spelling of 222111210020 in words is "two hundred twenty-two billion, one hundred eleven million, two hundred ten thousand, twenty".