150561222 has 64 divisors (see below), whose sum is σ = 354240000. Its totient is φ = 42641760.

The previous prime is 150561221. The next prime is 150561223. The reversal of 150561222 is 222165051.

It is a happy number.

150561222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (150561221) and next prime (150561223).

It is a junction number, because it is equal to n+sod(n) for n = 150561192 and 150561201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150561221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 306397 + ... + 306887.

It is an arithmetic number, because the mean of its divisors is an integer number (5535000).

Almost surely, 2^150561222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 150561222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177120000).

150561222 is an abundant number, since it is smaller than the sum of its proper divisors (203678778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

150561222 is a wasteful number, since it uses less digits than its factorization.

150561222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 150561222 is about 12270.3391151182. The cubic root of 150561222 is about 531.9911125016.

The spelling of 150561222 in words is "one hundred fifty million, five hundred sixty-one thousand, two hundred twenty-two".