2120420301121 has 2 divisors, whose sum is σ = 2120420301122. Its totient is φ = 2120420301120.

The previous prime is 2120420301113. The next prime is 2120420301221. The reversal of 2120420301121 is 1211030240212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1965424548096 + 154995753025 = 1401936^2 + 393695^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120420301121 - 2³ = 2120420301113 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120420301221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060210150560 + 1060210150561.

It is an arithmetic number, because the mean of its divisors is an integer number (1060210150561).

Almost surely, 2^{2120420301121} is an apocalyptic number.

It is an amenable number.

2120420301121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120420301121 is an equidigital number, since it uses as much as digits as its factorization.

2120420301121 is an odious number, because the sum of its binary digits is odd.

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

Adding to 2120420301121 its reverse (1211030240212), we get a palindrome (3331450541333).

The spelling of 2120420301121 in words is "two trillion, one hundred twenty billion, four hundred twenty million, three hundred one thousand, one hundred twenty-one".