2121002120267 has 2 divisors, whose sum is σ = 2121002120268. Its totient is φ = 2121002120266.

The previous prime is 2121002120219. The next prime is 2121002120287. The reversal of 2121002120267 is 7620212001212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121002120267 - 2⁸ = 2121002120011 is a prime.

It is not a weakly prime, because it can be changed into another prime (2121002120287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060501060133 + 1060501060134.

It is an arithmetic number, because the mean of its divisors is an integer number (1060501060134).

Almost surely, 2^{2121002120267} is an apocalyptic number.

2121002120267 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121002120267 is an equidigital number, since it uses as much as digits as its factorization.

2121002120267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 26.

Adding to 2121002120267 its reverse (7620212001212), we get a palindrome (9741214121479).

The spelling of 2121002120267 in words is "two trillion, one hundred twenty-one billion, two million, one hundred twenty thousand, two hundred sixty-seven".