301221117 has 12 divisors (see below), whose sum is σ = 457997280. Its totient is φ = 190244808.

The previous prime is 301221091. The next prime is 301221139. The reversal of 301221117 is 711122103.

It is a happy number.

It is not a de Polignac number, because 301221117 - 2¹⁴ = 301204733 is a prime.

It is a super-2 number, since 2×301221117² = 181468322653455378, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 301221117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (301221197) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 880593 + ... + 880934.

It is an arithmetic number, because the mean of its divisors is an integer number (38166440).

Almost surely, 2^301221117 is an apocalyptic number.

It is an amenable number.

301221117 is a deficient number, since it is larger than the sum of its proper divisors (156776163).

301221117 is a wasteful number, since it uses less digits than its factorization.

301221117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1761552 (or 1761549 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 301221117 is about 17355.7228890070. The cubic root of 301221117 is about 670.3400048994.

The spelling of 301221117 in words is "three hundred one million, two hundred twenty-one thousand, one hundred seventeen".