121200221222201 has 8 divisors (see below), whose sum is σ = 132438420535008. Its totient is φ = 109998688140000.

The previous prime is 121200221222177. The next prime is 121200221222221. The reversal of 121200221222201 is 102222122002121.

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

It is not a de Polignac number, because 121200221222201 - 2⁶ = 121200221222137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121200221222221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9166550735 + ... + 9166563956.

It is an arithmetic number, because the mean of its divisors is an integer number (16554802566876).

Almost surely, 2^{121200221222201} is an apocalyptic number.

121200221222201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121200221222201 is a deficient number, since it is larger than the sum of its proper divisors (11238199312807).

121200221222201 is a wasteful number, since it uses less digits than its factorization.

121200221222201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18333115303.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121200221222201 its reverse (102222122002121), we get a palindrome (223422343224322).

The spelling of 121200221222201 in words is "one hundred twenty-one trillion, two hundred billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred one".