11210020201021 has 4 divisors (see below), whose sum is σ = 11210051879452. Its totient is φ = 11209988522592.

The previous prime is 11210020201007. The next prime is 11210020201043. The reversal of 11210020201021 is 12010202001211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5737648924921 + 5472371276100 = 2395339^2 + 2339310^2 .

It is a cyclic number.

It is not a de Polignac number, because 11210020201021 - 2⁷ = 11210020200893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11210020200992 and 11210020201010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11210020201421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15302346 + ... + 16018171.

It is an arithmetic number, because the mean of its divisors is an integer number (2802512969863).

Almost surely, 2^{11210020201021} is an apocalyptic number.

It is an amenable number.

11210020201021 is a deficient number, since it is larger than the sum of its proper divisors (31678431).

11210020201021 is an equidigital number, since it uses as much as digits as its factorization.

11210020201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31678430.

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

Adding to 11210020201021 its reverse (12010202001211), we get a palindrome (23220222202232).

The spelling of 11210020201021 in words is "eleven trillion, two hundred ten billion, twenty million, two hundred one thousand, twenty-one".