4022001012 has 12 divisors (see below), whose sum is σ = 9384669056. Its totient is φ = 1340667000.

The previous prime is 4022000999. The next prime is 4022001043. The reversal of 4022001012 is 2101002204.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 335166751 = 4022001012 / (4 + 0 + 2 + 2 + 0 + 0 + 1 + 0 + 1 + 2).

It is a congruent number.

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, 167583364 + ... + 167583387.

Almost surely, 2^4022001012 is an apocalyptic number.

It is an amenable number.

4022001012 is an abundant number, since it is smaller than the sum of its proper divisors (5362668044).

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

4022001012 is a wasteful number, since it uses less digits than its factorization.

4022001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335166758 (or 335166756 counting only the distinct ones).

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

The square root of 4022001012 is about 63419.2479614825. The cubic root of 4022001012 is about 1590.3061014242.

Adding to 4022001012 its reverse (2101002204), we get a palindrome (6123003216).

The spelling of 4022001012 in words is "four billion, twenty-two million, one thousand, twelve".