11012201200021 has 32 divisors (see below), whose sum is σ = 12791116800000. Its totient is φ = 9285653849472.

The previous prime is 11012201200019. The next prime is 11012201200037. The reversal of 11012201200021 is 12000210221011.

It is not a de Polignac number, because 11012201200021 - 2¹ = 11012201200019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11012201199974 and 11012201200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012201200001) 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 31 ways as a sum of consecutive naturals, for example, 170226960 + ... + 170291638.

It is an arithmetic number, because the mean of its divisors is an integer number (399722400000).

Almost surely, 2^{11012201200021} is an apocalyptic number.

It is an amenable number.

11012201200021 is a deficient number, since it is larger than the sum of its proper divisors (1778915599979).

11012201200021 is an equidigital number, since it uses as much as digits as its factorization.

11012201200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65881.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11012201200021 its reverse (12000210221011), we get a palindrome (23012411421032).

The spelling of 11012201200021 in words is "eleven trillion, twelve billion, two hundred one million, two hundred thousand, twenty-one".