121112101 has 8 divisors (see below), whose sum is σ = 132751008. Its totient is φ = 109578000.

The previous prime is 121112093. The next prime is 121112107. The reversal of 121112101 is 101211121.

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

It is a cyclic number.

It is not a de Polignac number, because 121112101 - 2³ = 121112093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121112107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23770 + ... + 28411.

It is an arithmetic number, because the mean of its divisors is an integer number (16593876).

Almost surely, 2^121112101 is an apocalyptic number.

121112101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121112101 is a deficient number, since it is larger than the sum of its proper divisors (11638907).

121112101 is a wasteful number, since it uses less digits than its factorization.

121112101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52403.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 121112101 is about 11005.0943203591. The cubic root of 121112101 is about 494.7614413521.

Adding to 121112101 its reverse (101211121), we get a palindrome (222323222).

The spelling of 121112101 in words is "one hundred twenty-one million, one hundred twelve thousand, one hundred one".