4021122 has 32 divisors (see below), whose sum is σ = 9676800. Its totient is φ = 1088208.

The previous prime is 4021099. The next prime is 4021151. The reversal of 4021122 is 2211204.

It is a junction number, because it is equal to n+sod(n) for n = 4021098 and 4021107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1722 + ... + 3317.

It is an arithmetic number, because the mean of its divisors is an integer number (302400).

Almost surely, 2^4021122 is an apocalyptic number.

4021122 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

4021122 is an abundant number, since it is smaller than the sum of its proper divisors (5655678).

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

4021122 is a wasteful number, since it uses less digits than its factorization.

4021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 4021122 is about 2005.2735474244. The cubic root of 4021122 is about 159.0190238699.

Adding to 4021122 its reverse (2211204), we get a palindrome (6232326).

The spelling of 4021122 in words is "four million, twenty-one thousand, one hundred twenty-two".