121271006 has 4 divisors (see below), whose sum is σ = 181906512. Its totient is φ = 60635502.

The previous prime is 121270999. The next prime is 121271009. The reversal of 121271006 is 600172121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 600172121 = 31 ⋅19360391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121271009) 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 as a sum of consecutive naturals, namely, 30317750 + ... + 30317753.

It is an arithmetic number, because the mean of its divisors is an integer number (45476628).

Almost surely, 2^121271006 is an apocalyptic number.

121271006 is a deficient number, since it is larger than the sum of its proper divisors (60635506).

121271006 is an equidigital number, since it uses as much as digits as its factorization.

121271006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60635505.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 121271006 is about 11012.3115647897. The cubic root of 121271006 is about 494.9777305221.

The spelling of 121271006 in words is "one hundred twenty-one million, two hundred seventy-one thousand, six".