221023150 has 12 divisors (see below), whose sum is σ = 411103152. Its totient is φ = 88409240.

The previous prime is 221023147. The next prime is 221023157. The reversal of 221023150 is 51320122.

221023150 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221023157) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2210182 + ... + 2210281.

It is an arithmetic number, because the mean of its divisors is an integer number (34258596).

Almost surely, 2^221023150 is an apocalyptic number.

221023150 is a deficient number, since it is larger than the sum of its proper divisors (190080002).

221023150 is a wasteful number, since it uses less digits than its factorization.

221023150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4420475 (or 4420470 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 221023150 is about 14866.8473456883. The cubic root of 221023150 is about 604.6154695119.

Adding to 221023150 its reverse (51320122), we get a palindrome (272343272).

It can be divided in two parts, 22102 and 3150, that added together give a palindrome (25252).

The spelling of 221023150 in words is "two hundred twenty-one million, twenty-three thousand, one hundred fifty".