11012202002021 has 12 divisors (see below), whose sum is σ = 12108415048716. Its totient is φ = 10007706846720.

The previous prime is 11012202002017. The next prime is 11012202002077. The reversal of 11012202002021 is 12020020221011.

It can be written as a sum of positive squares in 2 ways, for example, as 3379663084996 + 7632538917025 = 1838386^2 + 2762705^2 .

It is not a de Polignac number, because 11012202002021 - 2² = 11012202002017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012202001987 and 11012202002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012202002521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15031100 + ... + 15746693.

It is an arithmetic number, because the mean of its divisors is an integer number (1009034587393).

Almost surely, 2^{11012202002021} is an apocalyptic number.

11012202002021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11012202002021 is a deficient number, since it is larger than the sum of its proper divisors (1096213046695).

11012202002021 is a wasteful number, since it uses less digits than its factorization.

11012202002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30780772 (or 30780761 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11012202002021 its reverse (12020020221011), we get a palindrome (23032222223032).

The spelling of 11012202002021 in words is "eleven trillion, twelve billion, two hundred two million, two thousand, twenty-one".