11010212220221 has 4 divisors (see below), whose sum is σ = 11020341211392. Its totient is φ = 11000083229052.

The previous prime is 11010212220211. The next prime is 11010212220233. The reversal of 11010212220221 is 12202221201011.

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 a de Polignac number, because none of the positive numbers 2^k-11010212220221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11010212220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11010212220211) 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, 5064493955 + ... + 5064496128.

It is an arithmetic number, because the mean of its divisors is an integer number (2755085302848).

Almost surely, 2^{11010212220221} is an apocalyptic number.

It is an amenable number.

11010212220221 is a deficient number, since it is larger than the sum of its proper divisors (10128991171).

11010212220221 is a wasteful number, since it uses less digits than its factorization.

11010212220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10128991170.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11010212220221 its reverse (12202221201011), we get a palindrome (23212433421232).

The spelling of 11010212220221 in words is "eleven trillion, ten billion, two hundred twelve million, two hundred twenty thousand, two hundred twenty-one".