112100011221 has 32 divisors (see below), whose sum is σ = 167710036608. Its totient is φ = 66005072640.

The previous prime is 112100011217. The next prime is 112100011223. The reversal of 112100011221 is 122110001211.

It is not a de Polignac number, because 112100011221 - 2² = 112100011217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112100011197 and 112100011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112100011223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 758811 + ... + 894423.

It is an arithmetic number, because the mean of its divisors is an integer number (5240938644).

Almost surely, 2^112100011221 is an apocalyptic number.

112100011221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112100011221 is a deficient number, since it is larger than the sum of its proper divisors (55610025387).

112100011221 is a wasteful number, since it uses less digits than its factorization.

112100011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136341.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 112100011221 its reverse (122110001211), we get a palindrome (234210012432).

The spelling of 112100011221 in words is "one hundred twelve billion, one hundred million, eleven thousand, two hundred twenty-one".