11221101222112 has 48 divisors (see below), whose sum is σ = 23255746693200. Its totient is φ = 5314917703680.

The previous prime is 11221101222109. The next prime is 11221101222161. The reversal of 11221101222112 is 21122210112211.

It is a happy number.

It is a super-2 number, since 2×11221101222112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 11221101222112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9028162 + ... + 10195582.

It is an arithmetic number, because the mean of its divisors is an integer number (484494722775).

Almost surely, 2^{11221101222112} is an apocalyptic number.

It is an amenable number.

11221101222112 is an abundant number, since it is smaller than the sum of its proper divisors (12034645471088).

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

11221101222112 is a wasteful number, since it uses less digits than its factorization.

11221101222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1183259 (or 1183251 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 11221101222112 its reverse (21122210112211), we get a palindrome (32343311334323).

The spelling of 11221101222112 in words is "eleven trillion, two hundred twenty-one billion, one hundred one million, two hundred twenty-two thousand, one hundred twelve".