121000122201 has 48 divisors (see below), whose sum is σ = 192841232640. Its totient is φ = 67240938240.

The previous prime is 121000122167. The next prime is 121000122239. The reversal of 121000122201 is 102221000121.

It is not a de Polignac number, because 121000122201 - 2⁶ = 121000122137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121000122251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14523405 + ... + 14531733.

It is an arithmetic number, because the mean of its divisors is an integer number (4017525680).

Almost surely, 2^121000122201 is an apocalyptic number.

It is an amenable number.

121000122201 is a deficient number, since it is larger than the sum of its proper divisors (71841110439).

121000122201 is a wasteful number, since it uses less digits than its factorization.

121000122201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11054 (or 11047 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 121000122201 its reverse (102221000121), we get a palindrome (223221122322).

The spelling of 121000122201 in words is "one hundred twenty-one billion, one hundred twenty-two thousand, two hundred one".