4000521211 has 16 divisors (see below), whose sum is σ = 4164751360. Its totient is φ = 3839996160.

The previous prime is 4000521197. The next prime is 4000521229. The reversal of 4000521211 is 1121250004.

4000521211 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 4000521211 - 2¹³ = 4000513019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4000521251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 754891 + ... + 760171.

It is an arithmetic number, because the mean of its divisors is an integer number (260296960).

Almost surely, 2^4000521211 is an apocalyptic number.

4000521211 is a deficient number, since it is larger than the sum of its proper divisors (164230149).

4000521211 is a wasteful number, since it uses less digits than its factorization.

4000521211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5626.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 4000521211 is about 63249.6736039009. The cubic root of 4000521211 is about 1587.4699965479.

Adding to 4000521211 its reverse (1121250004), we get a palindrome (5121771215).

It can be divided in two parts, 40005 and 21211, that added together give a palindrome (61216).

The spelling of 4000521211 in words is "four billion, five hundred twenty-one thousand, two hundred eleven".