150205224421 has 4 divisors (see below), whose sum is σ = 171663113632. Its totient is φ = 128747335212.

The previous prime is 150205224397. The next prime is 150205224437. The reversal of 150205224421 is 124422502051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 150205224421 - 2¹¹ = 150205222373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 150205224421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150205224461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10728944595 + ... + 10728944608.

It is an arithmetic number, because the mean of its divisors is an integer number (42915778408).

Almost surely, 2^150205224421 is an apocalyptic number.

It is an amenable number.

150205224421 is a deficient number, since it is larger than the sum of its proper divisors (21457889211).

150205224421 is an equidigital number, since it uses as much as digits as its factorization.

150205224421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21457889210.

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 150205224421 its reverse (124422502051), we get a palindrome (274627726472).

The spelling of 150205224421 in words is "one hundred fifty billion, two hundred five million, two hundred twenty-four thousand, four hundred twenty-one".