11221012221112 has 32 divisors (see below), whose sum is σ = 21536748161280. Its totient is φ = 5477977098720.

The previous prime is 11221012221101. The next prime is 11221012221119. The reversal of 11221012221112 is 21112221012211.

It is a happy number.

It is a super-2 number, since 2×11221012221112² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11221012221112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221012221119) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 5187358 + ... + 7025005.

It is an arithmetic number, because the mean of its divisors is an integer number (673023380040).

Almost surely, 2^{11221012221112} is an apocalyptic number.

It is an amenable number.

11221012221112 is a deficient number, since it is larger than the sum of its proper divisors (10315735940168).

11221012221112 is a wasteful number, since it uses less digits than its factorization.

11221012221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12215083 (or 12215079 counting only the distinct ones).

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

Adding to 11221012221112 its reverse (21112221012211), we get a palindrome (32333233233323).

The spelling of 11221012221112 in words is "eleven trillion, two hundred twenty-one billion, twelve million, two hundred twenty-one thousand, one hundred twelve".