150411761221 has 4 divisors (see below), whose sum is σ = 152101781100. Its totient is φ = 148721741344.

The previous prime is 150411761219. The next prime is 150411761249. The reversal of 150411761221 is 122167114051.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 67657732321 + 82754028900 = 260111^2 + 287670^2 .

It is a cyclic number.

It is not a de Polignac number, because 150411761221 - 2¹ = 150411761219 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 (150411761321) 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 in 3 ways as a sum of consecutive naturals, for example, 845009806 + ... + 845009983.

It is an arithmetic number, because the mean of its divisors is an integer number (38025445275).

Almost surely, 2^150411761221 is an apocalyptic number.

It is an amenable number.

150411761221 is a deficient number, since it is larger than the sum of its proper divisors (1690019879).

150411761221 is an equidigital number, since it uses as much as digits as its factorization.

150411761221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690019878.

The product of its (nonzero) digits is 3360, while the sum is 31.

Adding to 150411761221 its reverse (122167114051), we get a palindrome (272578875272).

The spelling of 150411761221 in words is "one hundred fifty billion, four hundred eleven million, seven hundred sixty-one thousand, two hundred twenty-one".