11012444116021 has 4 divisors (see below), whose sum is σ = 11082587072332. Its totient is φ = 10942301159712.

The previous prime is 11012444116013. The next prime is 11012444116067. The reversal of 11012444116021 is 12061144421011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4023690975396 + 6988753140625 = 2005914^2 + 2643625^2 .

It is a cyclic number.

It is not a de Polignac number, because 11012444116021 - 2³ = 11012444116013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012444119021) 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, 35071477920 + ... + 35071478233.

It is an arithmetic number, because the mean of its divisors is an integer number (2770646768083).

Almost surely, 2^{11012444116021} is an apocalyptic number.

It is an amenable number.

11012444116021 is a deficient number, since it is larger than the sum of its proper divisors (70142956311).

11012444116021 is an equidigital number, since it uses as much as digits as its factorization.

11012444116021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70142956310.

The product of its (nonzero) digits is 1536, while the sum is 28.

Adding to 11012444116021 its reverse (12061144421011), we get a palindrome (23073588537032).

The spelling of 11012444116021 in words is "eleven trillion, twelve billion, four hundred forty-four million, one hundred sixteen thousand, twenty-one".