121321222012013 has 8 divisors (see below), whose sum is σ = 123384524875200. Its totient is φ = 119267767850560.

The previous prime is 121321222012007. The next prime is 121321222012033. The reversal of 121321222012013 is 310210222123121.

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 121321222012013 - 2¹⁸ = 121321221749869 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 121321222012013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121321222012033) 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, 2462150588 + ... + 2462199861.

It is an arithmetic number, because the mean of its divisors is an integer number (15423065609400).

Almost surely, 2^{121321222012013} is an apocalyptic number.

It is an amenable number.

121321222012013 is a deficient number, since it is larger than the sum of its proper divisors (2063302863187).

121321222012013 is an equidigital number, since it uses as much as digits as its factorization.

121321222012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924350867.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 121321222012013 its reverse (310210222123121), we get a palindrome (431531444135134).

The spelling of 121321222012013 in words is "one hundred twenty-one trillion, three hundred twenty-one billion, two hundred twenty-two million, twelve thousand, thirteen".