112200001221 has 64 divisors (see below), whose sum is σ = 187369168896. Its totient is φ = 58019217600.

The previous prime is 112200001189. The next prime is 112200001231. The reversal of 112200001221 is 122100002211.

It is not a de Polignac number, because 112200001221 - 2⁵ = 112200001189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112200001197 and 112200001206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112200001231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 87450646 + ... + 87451928.

It is an arithmetic number, because the mean of its divisors is an integer number (2927643264).

Almost surely, 2^112200001221 is an apocalyptic number.

112200001221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112200001221 is a deficient number, since it is larger than the sum of its proper divisors (75169167675).

112200001221 is a wasteful number, since it uses less digits than its factorization.

112200001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2742.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 112200001221 its reverse (122100002211), we get a palindrome (234300003432).

The spelling of 112200001221 in words is "one hundred twelve billion, two hundred million, one thousand, two hundred twenty-one".