4000505122 has 16 divisors (see below), whose sum is σ = 6021586944. Its totient is φ = 1993320000.

The previous prime is 4000505101. The next prime is 4000505147. The reversal of 4000505122 is 2215050004.

It is a super-2 number, since 2×4000505122² = 32008082462296469768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4000505122.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1178047 + ... + 1181437.

It is an arithmetic number, because the mean of its divisors is an integer number (376349184).

Almost surely, 2^4000505122 is an apocalyptic number.

4000505122 is a deficient number, since it is larger than the sum of its proper divisors (2021081822).

4000505122 is a wasteful number, since it uses less digits than its factorization.

4000505122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5265.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 4000505122 is about 63249.5464173460. The cubic root of 4000505122 is about 1587.4678684219.

Adding to 4000505122 its reverse (2215050004), we get a palindrome (6215555126).

The spelling of 4000505122 in words is "four billion, five hundred five thousand, one hundred twenty-two".