102271012 has 12 divisors (see below), whose sum is σ = 179048716. Its totient is φ = 51114240.

The previous prime is 102271009. The next prime is 102271019. The reversal of 102271012 is 210172201.

It can be written as a sum of positive squares in 2 ways, for example, as 39639616 + 62631396 = 6296^2 + 7914^2 .

It is not an unprimeable number, because it can be changed into a prime (102271019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11212 + ... + 18172.

Almost surely, 2^102271012 is an apocalyptic number.

It is an amenable number.

102271012 is a deficient number, since it is larger than the sum of its proper divisors (76777704).

102271012 is a wasteful number, since it uses less digits than its factorization.

102271012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10638 (or 10636 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 102271012 is about 10112.9131312397. The cubic root of 102271012 is about 467.6463164082.

The spelling of 102271012 in words is "one hundred two million, two hundred seventy-one thousand, twelve".