2121301222141 has 2 divisors, whose sum is σ = 2121301222142. Its totient is φ = 2121301222140.

The previous prime is 2121301222031. The next prime is 2121301222153. The reversal of 2121301222141 is 1412221031212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2121258254116 + 42968025 = 1456454^2 + 6555^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121301222141 - 2¹⁷ = 2121301091069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121301223141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060650611070 + 1060650611071.

It is an arithmetic number, because the mean of its divisors is an integer number (1060650611071).

Almost surely, 2^{2121301222141} is an apocalyptic number.

It is an amenable number.

2121301222141 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121301222141 is an equidigital number, since it uses as much as digits as its factorization.

2121301222141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 2121301222141 its reverse (1412221031212), we get a palindrome (3533522253353).

The spelling of 2121301222141 in words is "two trillion, one hundred twenty-one billion, three hundred one million, two hundred twenty-two thousand, one hundred forty-one".