121220110200201 has 4 divisors (see below), whose sum is σ = 161626813600272. Its totient is φ = 80813406800132.

The previous prime is 121220110200197. The next prime is 121220110200239. The reversal of 121220110200201 is 102002011022121.

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 121220110200201 - 2² = 121220110200197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121220110200001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20203351700031 + ... + 20203351700036.

It is an arithmetic number, because the mean of its divisors is an integer number (40406703400068).

Almost surely, 2^{121220110200201} is an apocalyptic number.

It is an amenable number.

121220110200201 is a deficient number, since it is larger than the sum of its proper divisors (40406703400071).

121220110200201 is an equidigital number, since it uses as much as digits as its factorization.

121220110200201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40406703400070.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 121220110200201 its reverse (102002011022121), we get a palindrome (223222121222322).

The spelling of 121220110200201 in words is "one hundred twenty-one trillion, two hundred twenty billion, one hundred ten million, two hundred thousand, two hundred one".