11012002231021 has 6 divisors (see below), whose sum is σ = 12104101625966. Its totient is φ = 10010911119000.

The previous prime is 11012002231019. The next prime is 11012002231039. The reversal of 11012002231021 is 12013220021011.

It can be written as a sum of positive squares in only one way, i.e., 6389717228521 + 4622285002500 = 2527789^2 + 2149950^2 .

It is not a de Polignac number, because 11012002231021 - 2¹ = 11012002231019 is a prime.

It is a super-2 number, since 2×11012002231021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012002230986 and 11012002231004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012002235021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45504141330 + ... + 45504141571.

Almost surely, 2^{11012002231021} is an apocalyptic number.

11012002231021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11012002231021 is a deficient number, since it is larger than the sum of its proper divisors (1092099394945).

11012002231021 is an equidigital number, since it uses as much as digits as its factorization.

11012002231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91008282923 (or 91008282912 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11012002231021 its reverse (12013220021011), we get a palindrome (23025222252032).

The spelling of 11012002231021 in words is "eleven trillion, twelve billion, two million, two hundred thirty-one thousand, twenty-one".