112112111100021 has 8 divisors (see below), whose sum is σ = 149626686618240. Its totient is φ = 74669471490912.

The previous prime is 112112111100007. The next prime is 112112111100079. The reversal of 112112111100021 is 120001111211211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-112112111100021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112112111150021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17983973640 + ... + 17983979873.

It is an arithmetic number, because the mean of its divisors is an integer number (18703335827280).

Almost surely, 2^{112112111100021} is an apocalyptic number.

It is an amenable number.

112112111100021 is a deficient number, since it is larger than the sum of its proper divisors (37514575518219).

112112111100021 is a wasteful number, since it uses less digits than its factorization.

112112111100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35967954555.

The product of its (nonzero) digits is 8, while the sum is 15.

Adding to 112112111100021 its reverse (120001111211211), we get a palindrome (232113222311232).

The spelling of 112112111100021 in words is "one hundred twelve trillion, one hundred twelve billion, one hundred eleven million, one hundred thousand, twenty-one".