11221122201222 has 128 divisors (see below), whose sum is σ = 25112815948800. Its totient is φ = 3329600795136.

The previous prime is 11221122201203. The next prime is 11221122201257. The reversal of 11221122201222 is 22210222112211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15489804 + ... + 16198032.

It is an arithmetic number, because the mean of its divisors is an integer number (196193874600).

Almost surely, 2^{11221122201222} is an apocalyptic number.

11221122201222 is an abundant number, since it is smaller than the sum of its proper divisors (13891693747578).

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

11221122201222 is a wasteful number, since it uses less digits than its factorization.

11221122201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708430.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 11221122201222 its reverse (22210222112211), we get a palindrome (33431344313433).

The spelling of 11221122201222 in words is "eleven trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred one thousand, two hundred twenty-two".