421440122130127 has 2 divisors, whose sum is σ = 421440122130128. Its totient is φ = 421440122130126.

The previous prime is 421440122129933. The next prime is 421440122130133. The reversal of 421440122130127 is 721031221044124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421440122130127 - 2¹⁵ = 421440122097359 is a prime.

It is a super-2 number, since 2×421440122130127² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 421440122130092 and 421440122130101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421440122130187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210720061065063 + 210720061065064.

It is an arithmetic number, because the mean of its divisors is an integer number (210720061065064).

Almost surely, 2^{421440122130127} is an apocalyptic number.

421440122130127 is a deficient number, since it is larger than the sum of its proper divisors (1).

421440122130127 is an equidigital number, since it uses as much as digits as its factorization.

421440122130127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 34.

The spelling of 421440122130127 in words is "four hundred twenty-one trillion, four hundred forty billion, one hundred twenty-two million, one hundred thirty thousand, one hundred twenty-seven".