11200212121021 has 16 divisors (see below), whose sum is σ = 13964041542528. Its totient is φ = 8727350068800.

The previous prime is 11200212120919. The next prime is 11200212121027. The reversal of 11200212121021 is 12012121200211.

It is not a de Polignac number, because 11200212121021 - 2⁹ = 11200212120509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11200212120986 and 11200212121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200212121027) 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 15 ways as a sum of consecutive naturals, for example, 7563711 + ... + 8922451.

It is an arithmetic number, because the mean of its divisors is an integer number (872752596408).

Almost surely, 2^{11200212121021} is an apocalyptic number.

11200212121021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11200212121021 is a deficient number, since it is larger than the sum of its proper divisors (2763829421507).

11200212121021 is a wasteful number, since it uses less digits than its factorization.

11200212121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465812.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11200212121021 its reverse (12012121200211), we get a palindrome (23212333321232).

The spelling of 11200212121021 in words is "eleven trillion, two hundred billion, two hundred twelve million, one hundred twenty-one thousand, twenty-one".