4222512 has 120 divisors (see below), whose sum is σ = 13927680. Its totient is φ = 1169280.

The previous prime is 4222489. The next prime is 4222513. The reversal of 4222512 is 2152224.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4222513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59437 + ... + 59507.

It is an arithmetic number, because the mean of its divisors is an integer number (116064).

Almost surely, 2^4222512 is an apocalyptic number.

4222512 is a gapful number since it is divisible by the number (42) 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 4222512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6963840).

4222512 is an abundant number, since it is smaller than the sum of its proper divisors (9705168).

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

4222512 is a wasteful number, since it uses less digits than its factorization.

4222512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 142 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 4222512 is about 2054.8751786909. The cubic root of 4222512 is about 161.6306170136.

Adding to 4222512 its reverse (2152224), we get a palindrome (6374736).

The spelling of 4222512 in words is "four million, two hundred twenty-two thousand, five hundred twelve".