121000211121 has 8 divisors (see below), whose sum is σ = 161335450080. Its totient is φ = 80665889792.

The previous prime is 121000211113. The next prime is 121000211141. The reversal of 121000211121 is 121112000121.

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 121000211121 - 2³ = 121000211113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121000211097 and 121000211106.

It is not an unprimeable number, because it can be changed into a prime (121000211141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185446 + ... + 525728.

It is an arithmetic number, because the mean of its divisors is an integer number (20166931260).

Almost surely, 2^121000211121 is an apocalyptic number.

It is an amenable number.

121000211121 is a deficient number, since it is larger than the sum of its proper divisors (40335238959).

121000211121 is a wasteful number, since it uses less digits than its factorization.

121000211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458815.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121000211121 its reverse (121112000121), we get a palindrome (242112211242).

The spelling of 121000211121 in words is "one hundred twenty-one billion, two hundred eleven thousand, one hundred twenty-one".