121221012322013 has 8 divisors (see below), whose sum is σ = 121897664536032. Its totient is φ = 120544979473296.

The previous prime is 121221012321973. The next prime is 121221012322021. The reversal of 121221012322013 is 310223210122121.

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 121221012322013 - 2⁶ = 121221012321949 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 121221012322013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121221012322313) 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, 154448795 + ... + 155231672.

It is an arithmetic number, because the mean of its divisors is an integer number (15237208067004).

Almost surely, 2^{121221012322013} is an apocalyptic number.

It is an amenable number.

121221012322013 is a deficient number, since it is larger than the sum of its proper divisors (676652214019).

121221012322013 is a wasteful number, since it uses less digits than its factorization.

121221012322013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309682651.

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

Adding to 121221012322013 its reverse (310223210122121), we get a palindrome (431444222444134).

The spelling of 121221012322013 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twelve million, three hundred twenty-two thousand, thirteen".