4010012521 has 4 divisors (see below), whose sum is σ = 4019064912. Its totient is φ = 4000960132.

The previous prime is 4010012507. The next prime is 4010012527. The reversal of 4010012521 is 1252100104.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4010012521 - 2²⁵ = 3976458089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4010012495 and 4010012504.

It is not an unprimeable number, because it can be changed into a prime (4010012527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4525531 + ... + 4526416.

It is an arithmetic number, because the mean of its divisors is an integer number (1004766228).

Almost surely, 2^4010012521 is an apocalyptic number.

It is an amenable number.

4010012521 is a deficient number, since it is larger than the sum of its proper divisors (9052391).

4010012521 is an equidigital number, since it uses as much as digits as its factorization.

4010012521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9052390.

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

The square root of 4010012521 is about 63324.6596595671. The cubic root of 4010012521 is about 1588.7244389090.

Adding to 4010012521 its reverse (1252100104), we get a palindrome (5262112625).

The spelling of 4010012521 in words is "four billion, ten million, twelve thousand, five hundred twenty-one".