121201103321 has 4 divisors (see below), whose sum is σ = 121204155444. Its totient is φ = 121198051200.

The previous prime is 121201103291. The next prime is 121201103327. The reversal of 121201103321 is 123301102121.

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 29734174096 + 91466929225 = 172436^2 + 302435^2 .

It is a cyclic number.

It is not a de Polignac number, because 121201103321 - 2²² = 121196909017 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121201103321.

It is not an unprimeable number, because it can be changed into a prime (121201103327) 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, 1465700 + ... + 1546181.

It is an arithmetic number, because the mean of its divisors is an integer number (30301038861).

Almost surely, 2^121201103321 is an apocalyptic number.

It is an amenable number.

121201103321 is a deficient number, since it is larger than the sum of its proper divisors (3052123).

121201103321 is an equidigital number, since it uses as much as digits as its factorization.

121201103321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052122.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121201103321 its reverse (123301102121), we get a palindrome (244502205442).

The spelling of 121201103321 in words is "one hundred twenty-one billion, two hundred one million, one hundred three thousand, three hundred twenty-one".