1027201081 has 12 divisors (see below), whose sum is σ = 1092355120. Its totient is φ = 965736000.

The previous prime is 1027201001. The next prime is 1027201103. The reversal of 1027201081 is 1801027201.

It is not a de Polignac number, because 1027201081 - 2⁹ = 1027200569 is a prime.

It is a super-2 number, since 2×1027201081² = 2110284121615137122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1027201001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 455206 + ... + 457456.

Almost surely, 2^1027201081 is an apocalyptic number.

It is an amenable number.

1027201081 is a deficient number, since it is larger than the sum of its proper divisors (65154039).

1027201081 is a wasteful number, since it uses less digits than its factorization.

1027201081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3864 (or 3847 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 1027201081 is about 32049.9778627069. The cubic root of 1027201081 is about 1008.9860362813.

Adding to 1027201081 its reverse (1801027201), we get a palindrome (2828228282).

The spelling of 1027201081 in words is "one billion, twenty-seven million, two hundred one thousand, eighty-one".