4225122 has 40 divisors (see below), whose sum is σ = 10332432. Its totient is φ = 1279800.

The previous prime is 4225121. The next prime is 4225147. The reversal of 4225122 is 2215224.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4225095 and 4225104.

It is not an unprimeable number, because it can be changed into a prime (4225121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 597 + ... + 2967.

Almost surely, 2^4225122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4225122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5166216).

4225122 is an abundant number, since it is smaller than the sum of its proper divisors (6107310).

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

4225122 is a wasteful number, since it uses less digits than its factorization.

4225122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396 (or 2387 counting only the distinct ones).

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

The square root of 4225122 is about 2055.5101556548. The cubic root of 4225122 is about 161.6639122829.

The spelling of 4225122 in words is "four million, two hundred twenty-five thousand, one hundred twenty-two".