121100201201 has 4 divisors (see below), whose sum is σ = 138400229952. Its totient is φ = 103800172452.

The previous prime is 121100201149. The next prime is 121100201309. The reversal of 121100201201 is 102102001121.

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, and also an emirpimes, since its reverse is a distinct semiprime: 102102001121 = 73951 ⋅1380671.

It is a cyclic number.

It is not a de Polignac number, because 121100201201 - 2²² = 121096006897 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121100201401) 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 3 ways as a sum of consecutive naturals, for example, 8650014365 + ... + 8650014378.

It is an arithmetic number, because the mean of its divisors is an integer number (34600057488).

Almost surely, 2^121100201201 is an apocalyptic number.

It is an amenable number.

121100201201 is a deficient number, since it is larger than the sum of its proper divisors (17300028751).

121100201201 is an equidigital number, since it uses as much as digits as its factorization.

121100201201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17300028750.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121100201201 its reverse (102102001121), we get a palindrome (223202202322).

The spelling of 121100201201 in words is "one hundred twenty-one billion, one hundred million, two hundred one thousand, two hundred one".