150021211 has 4 divisors (see below), whose sum is σ = 150732424. Its totient is φ = 149310000.

The previous prime is 150021197. The next prime is 150021229. The reversal of 150021211 is 112120051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150021211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 150021191 and 150021200.

It is not an unprimeable number, because it can be changed into a prime (150021271) 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 3 ways as a sum of consecutive naturals, for example, 355290 + ... + 355711.

It is an arithmetic number, because the mean of its divisors is an integer number (37683106).

Almost surely, 2^150021211 is an apocalyptic number.

150021211 is a deficient number, since it is larger than the sum of its proper divisors (711213).

150021211 is an equidigital number, since it uses as much as digits as its factorization.

150021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711212.

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 150021211 is about 12248.3146187547. The cubic root of 150021211 is about 531.3543279119.

Adding to 150021211 its reverse (112120051), we get a palindrome (262141262).

The spelling of 150021211 in words is "one hundred fifty million, twenty-one thousand, two hundred eleven".