121222001020321 has 16 divisors (see below), whose sum is σ = 127820489891200. Its totient is φ = 114645459172608.

The previous prime is 121222001020277. The next prime is 121222001020333. The reversal of 121222001020321 is 123020100222121.

It is a cyclic number.

It is not a de Polignac number, because 121222001020321 - 2³³ = 121213411085729 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (121222001020361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38699785 + ... + 41714713.

It is an arithmetic number, because the mean of its divisors is an integer number (7988780618200).

Almost surely, 2^{121222001020321} is an apocalyptic number.

It is an amenable number.

121222001020321 is a deficient number, since it is larger than the sum of its proper divisors (6598488870879).

121222001020321 is a wasteful number, since it uses less digits than its factorization.

121222001020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018568.

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

Adding to 121222001020321 its reverse (123020100222121), we get a palindrome (244242101242442).

The spelling of 121222001020321 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, one million, twenty thousand, three hundred twenty-one".