10021012441 has 4 divisors (see below), whose sum is σ = 10932013584. Its totient is φ = 9110011300.

The previous prime is 10021012429. The next prime is 10021012447. The reversal of 10021012441 is 14421012001.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14421012001 = 11 ⋅1311001091.

It is a cyclic number.

It is not a de Polignac number, because 10021012441 - 2¹³ = 10021004249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021012447) 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, 455500555 + ... + 455500576.

It is an arithmetic number, because the mean of its divisors is an integer number (2733003396).

Almost surely, 2^10021012441 is an apocalyptic number.

10021012441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10021012441 is a deficient number, since it is larger than the sum of its proper divisors (911001143).

10021012441 is an equidigital number, since it uses as much as digits as its factorization.

10021012441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 911001142.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10021012441 its reverse (14421012001), we get a palindrome (24442024442).

The spelling of 10021012441 in words is "ten billion, twenty-one million, twelve thousand, four hundred forty-one".