11202100204021 has 2 divisors, whose sum is σ = 11202100204022. Its totient is φ = 11202100204020.

The previous prime is 11202100204013. The next prime is 11202100204067. The reversal of 11202100204021 is 12040200120211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7131511499121 + 4070588704900 = 2670489^2 + 2017570^2 .

It is a cyclic number.

It is not a de Polignac number, because 11202100204021 - 2³ = 11202100204013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11202100203986 and 11202100204004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11202100204091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5601050102010 + 5601050102011.

It is an arithmetic number, because the mean of its divisors is an integer number (5601050102011).

Almost surely, 2^{11202100204021} is an apocalyptic number.

It is an amenable number.

11202100204021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11202100204021 is an equidigital number, since it uses as much as digits as its factorization.

11202100204021 is an evil number, because the sum of its binary digits is even.

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

Adding to 11202100204021 its reverse (12040200120211), we get a palindrome (23242300324232).

The spelling of 11202100204021 in words is "eleven trillion, two hundred two billion, one hundred million, two hundred four thousand, twenty-one".