1021213022441 has 2 divisors, whose sum is σ = 1021213022442. Its totient is φ = 1021213022440.

The previous prime is 1021213022387. The next prime is 1021213022509. The reversal of 1021213022441 is 1442203121201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 990094651225 + 31118371216 = 995035^2 + 176404^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021213022441 - 2⁶ = 1021213022377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021213022041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510606511220 + 510606511221.

It is an arithmetic number, because the mean of its divisors is an integer number (510606511221).

Almost surely, 2^{1021213022441} is an apocalyptic number.

It is an amenable number.

1021213022441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021213022441 is an equidigital number, since it uses as much as digits as its factorization.

1021213022441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1021213022441 its reverse (1442203121201), we get a palindrome (2463416143642).

The spelling of 1021213022441 in words is "one trillion, twenty-one billion, two hundred thirteen million, twenty-two thousand, four hundred forty-one".