112121201021 has 8 divisors (see below), whose sum is σ = 117001248000. Its totient is φ = 107241588432.

The previous prime is 112121200993. The next prime is 112121201033. The reversal of 112121201021 is 120102121211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112121201021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112121200987 and 112121201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112121201041) 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, 488855 + ... + 680603.

It is an arithmetic number, because the mean of its divisors is an integer number (14625156000).

Almost surely, 2^112121201021 is an apocalyptic number.

It is an amenable number.

112121201021 is a deficient number, since it is larger than the sum of its proper divisors (4880046979).

112121201021 is a wasteful number, since it uses less digits than its factorization.

112121201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217195.

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

Adding to 112121201021 its reverse (120102121211), we get a palindrome (232223322232).

The spelling of 112121201021 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred one thousand, twenty-one".