121230220322121 has 32 divisors (see below), whose sum is σ = 171187492324608. Its totient is φ = 76048713861120.

The previous prime is 121230220322089. The next prime is 121230220322149. The reversal of 121230220322121 is 121223022032121.

It is not a de Polignac number, because 121230220322121 - 2⁵ = 121230220322089 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121230220322091 and 121230220322100.

It is not an unprimeable number, because it can be changed into a prime (121230220322521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7400652351 + ... + 7400668731.

It is an arithmetic number, because the mean of its divisors is an integer number (5349609135144).

Almost surely, 2^{121230220322121} is an apocalyptic number.

It is an amenable number.

121230220322121 is a deficient number, since it is larger than the sum of its proper divisors (49957272002487).

121230220322121 is a wasteful number, since it uses less digits than its factorization.

121230220322121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40561.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 121230220322121 its reverse (121223022032121), we get a palindrome (242453242354242).

The spelling of 121230220322121 in words is "one hundred twenty-one trillion, two hundred thirty billion, two hundred twenty million, three hundred twenty-two thousand, one hundred twenty-one".