11102020201021 has 8 divisors (see below), whose sum is σ = 11130734454840. Its totient is φ = 11073306842112.

The previous prime is 11102020201001. The next prime is 11102020201037. The reversal of 11102020201021 is 12010202020111.

It can be written as a sum of positive squares in 4 ways, for example, as 196927375225 + 10905092825796 = 443765^2 + 3302286^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11102020201021 - 2⁷ = 11102020200893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11102020200992 and 11102020201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102020201001) 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 7 ways as a sum of consecutive naturals, for example, 29827561 + ... + 30197473.

It is an arithmetic number, because the mean of its divisors is an integer number (1391341806855).

Almost surely, 2^{11102020201021} is an apocalyptic number.

It is an amenable number.

11102020201021 is a deficient number, since it is larger than the sum of its proper divisors (28714253819).

11102020201021 is an equidigital number, since it uses as much as digits as its factorization.

11102020201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447455.

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

Adding to 11102020201021 its reverse (12010202020111), we get a palindrome (23112222221132).

The spelling of 11102020201021 in words is "eleven trillion, one hundred two billion, twenty million, two hundred one thousand, twenty-one".