222123020 has 48 divisors (see below), whose sum is σ = 564459840. Its totient is φ = 71675904.

The previous prime is 222123001. The next prime is 222123043. The reversal of 222123020 is 20321222.

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 = 222122986 and 222123004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44285 + ... + 49044.

It is an arithmetic number, because the mean of its divisors is an integer number (11759580).

Almost surely, 2^222123020 is an apocalyptic number.

222123020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222123020 is an abundant number, since it is smaller than the sum of its proper divisors (342336820).

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

222123020 is a wasteful number, since it uses less digits than its factorization.

222123020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93362 (or 93360 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 222123020 is about 14903.7921348897. The cubic root of 222123020 is about 605.6167196618.

Adding to 222123020 its reverse (20321222), we get a palindrome (242444242).

The spelling of 222123020 in words is "two hundred twenty-two million, one hundred twenty-three thousand, twenty".