222111020 has 12 divisors (see below), whose sum is σ = 466433184. Its totient is φ = 88844400.

The previous prime is 222111017. The next prime is 222111031. The reversal of 222111020 is 20111222.

It is a happy number.

222111020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 222110992 and 222111010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5552756 + ... + 5552795.

It is an arithmetic number, because the mean of its divisors is an integer number (38869432).

Almost surely, 2^222111020 is an apocalyptic number.

222111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222111020 is an abundant number, since it is smaller than the sum of its proper divisors (244322164).

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

222111020 is a wasteful number, since it uses less digits than its factorization.

222111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11105560 (or 11105558 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 222111020 is about 14903.3895473479. The cubic root of 222111020 is about 605.6058134959.

Adding to 222111020 its reverse (20111222), we get a palindrome (242222242).

The spelling of 222111020 in words is "two hundred twenty-two million, one hundred eleven thousand, twenty".