112012121 has 8 divisors (see below), whose sum is σ = 121398984. Its totient is φ = 102735360.

The previous prime is 112012111. The next prime is 112012127. The reversal of 112012121 is 121210211.

It can be written as a sum of positive squares in 4 ways, for example, as 3748096 + 108264025 = 1936^2 + 10405^2 .

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

It is not a de Polignac number, because 112012121 - 2⁶ = 112012057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112012127) 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, 25400 + ... + 29481.

It is an arithmetic number, because the mean of its divisors is an integer number (15174873).

Almost surely, 2^112012121 is an apocalyptic number.

It is an amenable number.

112012121 is a deficient number, since it is larger than the sum of its proper divisors (9386863).

112012121 is a wasteful number, since it uses less digits than its factorization.

112012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55051.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 112012121 is about 10583.5778921875. The cubic root of 112012121 is about 482.0458410973.

Adding to 112012121 its reverse (121210211), we get a palindrome (233222332).

The spelling of 112012121 in words is "one hundred twelve million, twelve thousand, one hundred twenty-one".