121112022221121 has 8 divisors (see below), whose sum is σ = 161646971676480. Its totient is φ = 80659210456592.

The previous prime is 121112022221051. The next prime is 121112022221137. The reversal of 121112022221121 is 121122220211121.

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 121112022221121 - 2²² = 121112018026817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121112022221621) 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, 20534419266 + ... + 20534425163.

It is an arithmetic number, because the mean of its divisors is an integer number (20205871459560).

Almost surely, 2^{121112022221121} is an apocalyptic number.

It is an amenable number.

121112022221121 is a deficient number, since it is larger than the sum of its proper divisors (40534949455359).

121112022221121 is an equidigital number, since it uses as much as digits as its factorization.

121112022221121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41068845415.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 121112022221121 its reverse (121122220211121), we get a palindrome (242234242432242).

The spelling of 121112022221121 in words is "one hundred twenty-one trillion, one hundred twelve billion, twenty-two million, two hundred twenty-one thousand, one hundred twenty-one".