11222221022 has 4 divisors (see below), whose sum is σ = 16833331536. Its totient is φ = 5611110510.

The previous prime is 11222220967. The next prime is 11222221091. The reversal of 11222221022 is 22012222211.

It is a happy number.

11222221022 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.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805555254 + ... + 2805555257.

It is an arithmetic number, because the mean of its divisors is an integer number (4208332884).

Almost surely, 2^11222221022 is an apocalyptic number.

11222221022 is a deficient number, since it is larger than the sum of its proper divisors (5611110514).

11222221022 is an equidigital number, since it uses as much as digits as its factorization.

11222221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5611110513.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 11222221022 its reverse (22012222211), we get a palindrome (33234443233).

The spelling of 11222221022 in words is "eleven billion, two hundred twenty-two million, two hundred twenty-one thousand, twenty-two".