11112022202221 has 4 divisors (see below), whose sum is σ = 11113032121632. Its totient is φ = 11111012282812.

The previous prime is 11112022202191. The next prime is 11112022202273. The reversal of 11112022202221 is 12220222021111.

11112022202221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11112022202221 - 2¹³ = 11112022194029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112022202291) 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, 504943201 + ... + 504965206.

It is an arithmetic number, because the mean of its divisors is an integer number (2778258030408).

Almost surely, 2^{11112022202221} is an apocalyptic number.

It is an amenable number.

11112022202221 is a deficient number, since it is larger than the sum of its proper divisors (1009919411).

11112022202221 is a wasteful number, since it uses less digits than its factorization.

11112022202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009919410.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11112022202221 its reverse (12220222021111), we get a palindrome (23332244223332).

The spelling of 11112022202221 in words is "eleven trillion, one hundred twelve billion, twenty-two million, two hundred two thousand, two hundred twenty-one".