4025222120 has 16 divisors (see below), whose sum is σ = 9056749860. Its totient is φ = 1610088832.

The previous prime is 4025222093. The next prime is 4025222147. The reversal of 4025222120 is 212225204.

It is an interprime number because it is at equal distance from previous prime (4025222093) and next prime (4025222147).

It can be written as a sum of positive squares in 2 ways, for example, as 3929534596 + 95687524 = 62686^2 + 9782^2 .

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 = 4025222092 and 4025222101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50315237 + ... + 50315316.

Almost surely, 2^4025222120 is an apocalyptic number.

4025222120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4025222120 is an abundant number, since it is smaller than the sum of its proper divisors (5031527740).

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

4025222120 is a wasteful number, since it uses less digits than its factorization.

4025222120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100630564 (or 100630560 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 4025222120 is about 63444.6382289315. The cubic root of 4025222120 is about 1590.7305320162.

Adding to 4025222120 its reverse (212225204), we get a palindrome (4237447324).

The spelling of 4025222120 in words is "four billion, twenty-five million, two hundred twenty-two thousand, one hundred twenty".