11120222021221 has 4 divisors (see below), whose sum is σ = 11378831835712. Its totient is φ = 10861612206732.

The previous prime is 11120222021191. The next prime is 11120222021263. The reversal of 11120222021221 is 12212022202111.

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 11120222021221 - 2⁹ = 11120222020709 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 (11120222021621) 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, 129304907181 + ... + 129304907266.

It is an arithmetic number, because the mean of its divisors is an integer number (2844707958928).

Almost surely, 2^{11120222021221} is an apocalyptic number.

It is an amenable number.

11120222021221 is a deficient number, since it is larger than the sum of its proper divisors (258609814491).

11120222021221 is an equidigital number, since it uses as much as digits as its factorization.

11120222021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258609814490.

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

Adding to 11120222021221 its reverse (12212022202111), we get a palindrome (23332244223332).

The spelling of 11120222021221 in words is "eleven trillion, one hundred twenty billion, two hundred twenty-two million, twenty-one thousand, two hundred twenty-one".