121120212100201 has 4 divisors (see below), whose sum is σ = 121129865433232. Its totient is φ = 121110558767172.

The previous prime is 121120212100193. The next prime is 121120212100219. The reversal of 121120212100201 is 102001212021121.

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 121120212100201 - 2³ = 121120212100193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121120212100271) 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, 4826647695 + ... + 4826672788.

It is an arithmetic number, because the mean of its divisors is an integer number (30282466358308).

Almost surely, 2^{121120212100201} is an apocalyptic number.

It is an amenable number.

121120212100201 is a deficient number, since it is larger than the sum of its proper divisors (9653333031).

121120212100201 is an equidigital number, since it uses as much as digits as its factorization.

121120212100201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9653333030.

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

Adding to 121120212100201 its reverse (102001212021121), we get a palindrome (223121424121322).

The spelling of 121120212100201 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred twelve million, one hundred thousand, two hundred one".