11221201220112 has 120 divisors (see below), whose sum is σ = 33861891622104. Its totient is φ = 3448344748032.

The previous prime is 11221201220107. The next prime is 11221201220123. The reversal of 11221201220112 is 21102210212211.

11221201220112 is a `hidden beast` number, since 11 + 221 + 201 + 220 + 1 + 12 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 17560490256 + 11203640729856 = 132516^2 + 3347184^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 2268513 + ... + 5252480.

Almost surely, 2^{11221201220112} is an apocalyptic number.

11221201220112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11221201220112 is an abundant number, since it is smaller than the sum of its proper divisors (22640690401992).

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

11221201220112 is a wasteful number, since it uses less digits than its factorization.

11221201220112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7521817 (or 7521808 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11221201220112 its reverse (21102210212211), we get a palindrome (32323411432323).

The spelling of 11221201220112 in words is "eleven trillion, two hundred twenty-one billion, two hundred one million, two hundred twenty thousand, one hundred twelve".