4005212001 has 16 divisors (see below), whose sum is σ = 6268132224. Its totient is φ = 2226835584.

The previous prime is 4005211981. The next prime is 4005212021. The reversal of 4005212001 is 1002125004.

It is an interprime number because it is at equal distance from previous prime (4005211981) and next prime (4005212021).

It is not a de Polignac number, because 4005212001 - 2¹¹ = 4005209953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4005212021) 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, 2576580 + ... + 2578133.

It is an arithmetic number, because the mean of its divisors is an integer number (391758264).

Almost surely, 2^4005212001 is an apocalyptic number.

It is an amenable number.

4005212001 is a deficient number, since it is larger than the sum of its proper divisors (2262920223).

4005212001 is a wasteful number, since it uses less digits than its factorization.

4005212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5154760.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 4005212001 is about 63286.7442755590. The cubic root of 4005212001 is about 1588.0902140512.

Adding to 4005212001 its reverse (1002125004), we get a palindrome (5007337005).

The spelling of 4005212001 in words is "four billion, five million, two hundred twelve thousand, one".