11211221022 has 8 divisors (see below), whose sum is σ = 22422442056. Its totient is φ = 3737073672.

The previous prime is 11211220973. The next prime is 11211221023. The reversal of 11211221022 is 22012211211.

11211221022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

11211221022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 11211220992 and 11211221010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211221023) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 934268413 + ... + 934268424.

It is an arithmetic number, because the mean of its divisors is an integer number (2802805257).

Almost surely, 2^11211221022 is an apocalyptic number.

11211221022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11211221022 is a wasteful number, since it uses less digits than its factorization.

11211221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868536842.

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

Adding to 11211221022 its reverse (22012211211), we get a palindrome (33223432233).

The spelling of 11211221022 in words is "eleven billion, two hundred eleven million, two hundred twenty-one thousand, twenty-two".