1021427332271 has 2 divisors, whose sum is σ = 1021427332272. Its totient is φ = 1021427332270.

The previous prime is 1021427332217. The next prime is 1021427332361. The reversal of 1021427332271 is 1722337241201.

Together with previous prime (1021427332217) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021427332271 - 2²² = 1021423137967 is a prime.

It is a super-2 number, since 2×1021427332271² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021427332171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510713666135 + 510713666136.

It is an arithmetic number, because the mean of its divisors is an integer number (510713666136).

Almost surely, 2^{1021427332271} is an apocalyptic number.

1021427332271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021427332271 is an equidigital number, since it uses as much as digits as its factorization.

1021427332271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 35.

The spelling of 1021427332271 in words is "one trillion, twenty-one billion, four hundred twenty-seven million, three hundred thirty-two thousand, two hundred seventy-one".