121102021201 has 4 divisors (see below), whose sum is σ = 138402309952. Its totient is φ = 103801732452.

The previous prime is 121102021177. The next prime is 121102021259. The reversal of 121102021201 is 102120201121.

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 121102021201 - 2²⁹ = 120565150289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121102022201) 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, 8650144365 + ... + 8650144378.

It is an arithmetic number, because the mean of its divisors is an integer number (34600577488).

Almost surely, 2^121102021201 is an apocalyptic number.

It is an amenable number.

121102021201 is a deficient number, since it is larger than the sum of its proper divisors (17300288751).

121102021201 is an equidigital number, since it uses as much as digits as its factorization.

121102021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17300288750.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 121102021201 its reverse (102120201121), we get a palindrome (223222222322).

The spelling of 121102021201 in words is "one hundred twenty-one billion, one hundred two million, twenty-one thousand, two hundred one".