121222311120321 has 16 divisors (see below), whose sum is σ = 165123356160000. Its totient is φ = 79069209188688.

The previous prime is 121222311120203. The next prime is 121222311120329. The reversal of 121222311120321 is 123021113222121.

It is not a de Polignac number, because 121222311120321 - 2¹¹ = 121222311118273 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121222311120291 and 121222311120300.

It is not an unprimeable number, because it can be changed into a prime (121222311120329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141961321 + ... + 142812678.

It is an arithmetic number, because the mean of its divisors is an integer number (10320209760000).

Almost surely, 2^{121222311120321} is an apocalyptic number.

It is an amenable number.

121222311120321 is a deficient number, since it is larger than the sum of its proper divisors (43901045039679).

121222311120321 is a wasteful number, since it uses less digits than its factorization.

121222311120321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284777068.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 121222311120321 its reverse (123021113222121), we get a palindrome (244243424342442).

The spelling of 121222311120321 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, three hundred eleven million, one hundred twenty thousand, three hundred twenty-one".