121112000202121 has 4 divisors (see below), whose sum is σ = 121114826069200. Its totient is φ = 121109174335044.

The previous prime is 121112000202097. The next prime is 121112000202139. The reversal of 121112000202121 is 121202000211121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 121112000202121 - 2¹¹ = 121112000200073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121112000202095 and 121112000202104.

It is not an unprimeable number, because it can be changed into a prime (121112000292121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1412869251 + ... + 1412954968.

It is an arithmetic number, because the mean of its divisors is an integer number (30278706517300).

Almost surely, 2^{121112000202121} is an apocalyptic number.

It is an amenable number.

121112000202121 is a deficient number, since it is larger than the sum of its proper divisors (2825867079).

121112000202121 is an equidigital number, since it uses as much as digits as its factorization.

121112000202121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2825867078.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121112000202121 its reverse (121202000211121), we get a palindrome (242314000413242).

The spelling of 121112000202121 in words is "one hundred twenty-one trillion, one hundred twelve billion, two hundred two thousand, one hundred twenty-one".