120121220971 has 2 divisors, whose sum is σ = 120121220972. Its totient is φ = 120121220970.

The previous prime is 120121220951. The next prime is 120121221037. The reversal of 120121220971 is 179022121021.

It is a weak prime.

It is an emirp because it is prime and its reverse (179022121021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120121220971 - 2⁵ = 120121220939 is a prime.

It is not a weakly prime, because it can be changed into another prime (120121220951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60060610485 + 60060610486.

It is an arithmetic number, because the mean of its divisors is an integer number (60060610486).

Almost surely, 2^120121220971 is an apocalyptic number.

120121220971 is a deficient number, since it is larger than the sum of its proper divisors (1).

120121220971 is an equidigital number, since it uses as much as digits as its factorization.

120121220971 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

Adding to 120121220971 its reverse (179022121021), we get a palindrome (299143341992).

The spelling of 120121220971 in words is "one hundred twenty billion, one hundred twenty-one million, two hundred twenty thousand, nine hundred seventy-one".