121220231023321 has 8 divisors (see below), whose sum is σ = 121483639576800. Its totient is φ = 120956999199840.

The previous prime is 121220231023271. The next prime is 121220231023361. The reversal of 121220231023321 is 123320132022121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121220231023321 - 2¹⁵ = 121220230990553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121220231023361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42809151 + ... + 45552868.

It is an arithmetic number, because the mean of its divisors is an integer number (15185454947100).

Almost surely, 2^{121220231023321} is an apocalyptic number.

It is an amenable number.

121220231023321 is a deficient number, since it is larger than the sum of its proper divisors (263408553479).

121220231023321 is an equidigital number, since it uses as much as digits as its factorization.

121220231023321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88364999.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 121220231023321 its reverse (123320132022121), we get a palindrome (244540363045442).

The spelling of 121220231023321 in words is "one hundred twenty-one trillion, two hundred twenty billion, two hundred thirty-one million, twenty-three thousand, three hundred twenty-one".