150121211 has 2 divisors, whose sum is σ = 150121212. Its totient is φ = 150121210.

The previous prime is 150121157. The next prime is 150121217. The reversal of 150121211 is 112121051.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 150121211 - 2¹⁸ = 149859067 is a prime.

It is not a weakly prime, because it can be changed into another prime (150121217) 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, 75060605 + 75060606.

It is an arithmetic number, because the mean of its divisors is an integer number (75060606).

Almost surely, 2^150121211 is an apocalyptic number.

150121211 is a deficient number, since it is larger than the sum of its proper divisors (1).

150121211 is an equidigital number, since it uses as much as digits as its factorization.

150121211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 150121211 is about 12252.3961330019. The cubic root of 150121211 is about 531.4723637341.

Adding to 150121211 its reverse (112121051), we get a palindrome (262242262).

The spelling of 150121211 in words is "one hundred fifty million, one hundred twenty-one thousand, two hundred eleven".