121034201221 has 4 divisors (see below), whose sum is σ = 121058027244. Its totient is φ = 121010375200.

The previous prime is 121034201207. The next prime is 121034201231. The reversal of 121034201221 is 122102430121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14422809025 + 106611392196 = 120095^2 + 326514^2 .

It is a cyclic number.

It is not a de Polignac number, because 121034201221 - 2¹³ = 121034193029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121034201231) 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, 11905390 + ... + 11915551.

It is an arithmetic number, because the mean of its divisors is an integer number (30264506811).

Almost surely, 2^121034201221 is an apocalyptic number.

It is an amenable number.

121034201221 is a deficient number, since it is larger than the sum of its proper divisors (23826023).

121034201221 is an equidigital number, since it uses as much as digits as its factorization.

121034201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23826022.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 121034201221 its reverse (122102430121), we get a palindrome (243136631342).

The spelling of 121034201221 in words is "one hundred twenty-one billion, thirty-four million, two hundred one thousand, two hundred twenty-one".