11020021120221 has 4 divisors (see below), whose sum is σ = 14693361493632. Its totient is φ = 7346680746812.

The previous prime is 11020021120093. The next prime is 11020021120223. The reversal of 11020021120221 is 12202112002011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11020021120221 - 2⁷ = 11020021120093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11020021120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020021120223) 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 3 ways as a sum of consecutive naturals, for example, 1836670186701 + ... + 1836670186706.

It is an arithmetic number, because the mean of its divisors is an integer number (3673340373408).

Almost surely, 2^{11020021120221} is an apocalyptic number.

It is an amenable number.

11020021120221 is a deficient number, since it is larger than the sum of its proper divisors (3673340373411).

11020021120221 is an equidigital number, since it uses as much as digits as its factorization.

11020021120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3673340373410.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11020021120221 its reverse (12202112002011), we get a palindrome (23222133122232).

The spelling of 11020021120221 in words is "eleven trillion, twenty billion, twenty-one million, one hundred twenty thousand, two hundred twenty-one".