102281121 has 12 divisors (see below), whose sum is σ = 152505600. Its totient is φ = 65987640.

The previous prime is 102281119. The next prime is 102281141. The reversal of 102281121 is 121182201.

It is not a de Polignac number, because 102281121 - 2¹ = 102281119 is a prime.

It is a super-2 number, since 2×102281121² = 20922855426033282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102281094 and 102281103.

It is not an unprimeable number, because it can be changed into a prime (102281111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183021 + ... + 183578.

It is an arithmetic number, because the mean of its divisors is an integer number (12708800).

Almost surely, 2^102281121 is an apocalyptic number.

It is an amenable number.

102281121 is a deficient number, since it is larger than the sum of its proper divisors (50224479).

102281121 is a wasteful number, since it uses less digits than its factorization.

102281121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366636 (or 366633 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 102281121 is about 10113.4129254174. The cubic root of 102281121 is about 467.6617241005.

The spelling of 102281121 in words is "one hundred two million, two hundred eighty-one thousand, one hundred twenty-one".