2121021213041 has 2 divisors, whose sum is σ = 2121021213042. Its totient is φ = 2121021213040.

The previous prime is 2121021213023. The next prime is 2121021213067. The reversal of 2121021213041 is 1403121201212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1803122582416 + 317898630625 = 1342804^2 + 563825^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121021213041 - 2¹⁰ = 2121021212017 is a prime.

It is not a weakly prime, because it can be changed into another prime (2121026213041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060510606520 + 1060510606521.

It is an arithmetic number, because the mean of its divisors is an integer number (1060510606521).

Almost surely, 2^{2121021213041} is an apocalyptic number.

It is an amenable number.

2121021213041 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121021213041 is an equidigital number, since it uses as much as digits as its factorization.

2121021213041 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 20.

Adding to 2121021213041 its reverse (1403121201212), we get a palindrome (3524142414253).

The spelling of 2121021213041 in words is "two trillion, one hundred twenty-one billion, twenty-one million, two hundred thirteen thousand, forty-one".