121120322221 has 4 divisors (see below), whose sum is σ = 121124833344. Its totient is φ = 121115811100.

The previous prime is 121120322173. The next prime is 121120322243. The reversal of 121120322221 is 122223021121.

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 121120322221 - 2¹¹ = 121120320173 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 (121120322261) 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, 2215045 + ... + 2269066.

It is an arithmetic number, because the mean of its divisors is an integer number (30281208336).

Almost surely, 2^121120322221 is an apocalyptic number.

It is an amenable number.

121120322221 is a deficient number, since it is larger than the sum of its proper divisors (4511123).

121120322221 is an equidigital number, since it uses as much as digits as its factorization.

121120322221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511122.

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

Adding to 121120322221 its reverse (122223021121), we get a palindrome (243343343342).

The spelling of 121120322221 in words is "one hundred twenty-one billion, one hundred twenty million, three hundred twenty-two thousand, two hundred twenty-one".