112221100121 has 8 divisors (see below), whose sum is σ = 120946689864. Its totient is φ = 103508824320.

The previous prime is 112221100087. The next prime is 112221100177. The reversal of 112221100121 is 121001122211.

It can be written as a sum of positive squares in 4 ways, for example, as 18072769225 + 94148330896 = 134435^2 + 306836^2 .

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 112221100121 - 2¹⁰ = 112221099097 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 112221100096 and 112221100105.

It is not an unprimeable number, because it can be changed into a prime (112221100021) 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, 3310970 + ... + 3344691.

It is an arithmetic number, because the mean of its divisors is an integer number (15118336233).

Almost surely, 2^112221100121 is an apocalyptic number.

It is an amenable number.

112221100121 is a deficient number, since it is larger than the sum of its proper divisors (8725589743).

112221100121 is a wasteful number, since it uses less digits than its factorization.

112221100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6656971.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 112221100121 its reverse (121001122211), we get a palindrome (233222222332).

The spelling of 112221100121 in words is "one hundred twelve billion, two hundred twenty-one million, one hundred thousand, one hundred twenty-one".