127221336 has 144 divisors (see below), whose sum is σ = 401473800. Its totient is φ = 36241920.

The previous prime is 127221329. The next prime is 127221371. The reversal of 127221336 is 633122721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 147675 + ... + 148533.

Almost surely, 2^127221336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 127221336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200736900).

127221336 is an abundant number, since it is smaller than the sum of its proper divisors (274252464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127221336 is a wasteful number, since it uses less digits than its factorization.

127221336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910 (or 892 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 127221336 is about 11279.2435916599. The cubic root of 127221336 is about 502.9444082183.

The spelling of 127221336 in words is "one hundred twenty-seven million, two hundred twenty-one thousand, three hundred thirty-six".