1421202242461 has 2 divisors, whose sum is σ = 1421202242462. Its totient is φ = 1421202242460.

The previous prime is 1421202242441. The next prime is 1421202242501. The reversal of 1421202242461 is 1642422021241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1280674725561 + 140527516900 = 1131669^2 + 374870^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421202242461 - 2¹⁷ = 1421202111389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421202242441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710601121230 + 710601121231.

It is an arithmetic number, because the mean of its divisors is an integer number (710601121231).

Almost surely, 2^{1421202242461} is an apocalyptic number.

It is an amenable number.

1421202242461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421202242461 is an equidigital number, since it uses as much as digits as its factorization.

1421202242461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 31.

The spelling of 1421202242461 in words is "one trillion, four hundred twenty-one billion, two hundred two million, two hundred forty-two thousand, four hundred sixty-one".