112221201222 has 64 divisors (see below), whose sum is σ = 273115584000. Its totient is φ = 33944340384.

The previous prime is 112221201187. The next prime is 112221201241. The reversal of 112221201222 is 222102122211.

It is a happy number.

It is a super-2 number, since 2×112221201222² (a number of 23 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 112221201195 and 112221201204.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1313322 + ... + 1396157.

It is an arithmetic number, because the mean of its divisors is an integer number (4267431000).

Almost surely, 2^112221201222 is an apocalyptic number.

112221201222 is an abundant number, since it is smaller than the sum of its proper divisors (160894382778).

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

112221201222 is a wasteful number, since it uses less digits than its factorization.

112221201222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709562 (or 2709556 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 112221201222 its reverse (222102122211), we get a palindrome (334323323433).

The spelling of 112221201222 in words is "one hundred twelve billion, two hundred twenty-one million, two hundred one thousand, two hundred twenty-two".