2221250154 has 8 divisors (see below), whose sum is σ = 4442500320. Its totient is φ = 740416716.

The previous prime is 2221250117. The next prime is 2221250159. The reversal of 2221250154 is 4510521222.

It is a sphenic number, since it is the product of 3 distinct primes.

2221250154 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (2221250159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185104174 + ... + 185104185.

It is an arithmetic number, because the mean of its divisors is an integer number (555312540).

Almost surely, 2^2221250154 is an apocalyptic number.

2221250154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2221250154 is a wasteful number, since it uses less digits than its factorization.

2221250154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370208364.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 2221250154 is about 47130.1406108660. The cubic root of 2221250154 is about 1304.7655767173.

Adding to 2221250154 its reverse (4510521222), we get a palindrome (6731771376).

The spelling of 2221250154 in words is "two billion, two hundred twenty-one million, two hundred fifty thousand, one hundred fifty-four".