120231110221 has 2 divisors, whose sum is σ = 120231110222. Its totient is φ = 120231110220.

The previous prime is 120231110203. The next prime is 120231110269. The reversal of 120231110221 is 122011132021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119636433225 + 594676996 = 345885^2 + 24386^2 .

It is a cyclic number.

It is not a de Polignac number, because 120231110221 - 2¹³ = 120231102029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120231110195 and 120231110204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120231110821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60115555110 + 60115555111.

It is an arithmetic number, because the mean of its divisors is an integer number (60115555111).

Almost surely, 2^120231110221 is an apocalyptic number.

It is an amenable number.

120231110221 is a deficient number, since it is larger than the sum of its proper divisors (1).

120231110221 is an equidigital number, since it uses as much as digits as its factorization.

120231110221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 120231110221 its reverse (122011132021), we get a palindrome (242242242242).

The spelling of 120231110221 in words is "one hundred twenty billion, two hundred thirty-one million, one hundred ten thousand, two hundred twenty-one".