150055221 has 8 divisors (see below), whose sum is σ = 206527744. Its totient is φ = 96809760.

The previous prime is 150055219. The next prime is 150055237. The reversal of 150055221 is 122550051.

150055221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 150055221 - 2¹ = 150055219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150055201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 806656 + ... + 806841.

It is an arithmetic number, because the mean of its divisors is an integer number (25815968).

Almost surely, 2^150055221 is an apocalyptic number.

It is an amenable number.

150055221 is a deficient number, since it is larger than the sum of its proper divisors (56472523).

150055221 is a wasteful number, since it uses less digits than its factorization.

150055221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1613531.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 150055221 is about 12249.7028943563. The cubic root of 150055221 is about 531.3944777795.

The spelling of 150055221 in words is "one hundred fifty million, fifty-five thousand, two hundred twenty-one".