222341420 has 72 divisors (see below), whose sum is σ = 571782960. Its totient is φ = 72213120.

The previous prime is 222341417. The next prime is 222341423. The reversal of 222341420 is 24143222.

It is an interprime number because it is at equal distance from previous prime (222341417) and next prime (222341423).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 222341392 and 222341401.

It is not an unprimeable number, because it can be changed into a prime (222341423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12650 + ... + 24590.

It is an arithmetic number, because the mean of its divisors is an integer number (7941430).

Almost surely, 2^222341420 is an apocalyptic number.

222341420 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 222341420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (285891480).

222341420 is an abundant number, since it is smaller than the sum of its proper divisors (349441540).

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

222341420 is a wasteful number, since it uses less digits than its factorization.

222341420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11983 (or 11974 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 222341420 is about 14911.1173290267. The cubic root of 222341420 is about 605.8151432881.

Adding to 222341420 its reverse (24143222), we get a palindrome (246484642).

The spelling of 222341420 in words is "two hundred twenty-two million, three hundred forty-one thousand, four hundred twenty".