112012100221 has 6 divisors (see below), whose sum is σ = 130299790110. Its totient is φ = 96010371576.

The previous prime is 112012100219. The next prime is 112012100231. The reversal of 112012100221 is 122001210211.

It can be written as a sum of positive squares in only one way, i.e., 111980583225 + 31516996 = 334635^2 + 5614^2 .

It is not a de Polignac number, because 112012100221 - 2¹ = 112012100219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112012100231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1142980566 + ... + 1142980663.

It is an arithmetic number, because the mean of its divisors is an integer number (21716631685).

Almost surely, 2^112012100221 is an apocalyptic number.

It is an amenable number.

112012100221 is a deficient number, since it is larger than the sum of its proper divisors (18287689889).

112012100221 is an equidigital number, since it uses as much as digits as its factorization.

112012100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285961243 (or 2285961236 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 112012100221 its reverse (122001210211), we get a palindrome (234013310432).

The spelling of 112012100221 in words is "one hundred twelve billion, twelve million, one hundred thousand, two hundred twenty-one".