2221325154 has 32 divisors (see below), whose sum is σ = 4947474240. Its totient is φ = 738762336.

The previous prime is 2221325149. The next prime is 2221325159. The reversal of 2221325154 is 4515231222.

It is an interprime number because it is at equal distance from previous prime (2221325149) and next prime (2221325159).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2221325159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22507 + ... + 70350.

It is an arithmetic number, because the mean of its divisors is an integer number (154608570).

Almost surely, 2^2221325154 is an apocalyptic number.

2221325154 is an abundant number, since it is smaller than the sum of its proper divisors (2726149086).

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

2221325154 is a wasteful number, since it uses less digits than its factorization.

2221325154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93311 (or 93305 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 2221325154 is about 47130.9362733226. The cubic root of 2221325154 is about 1304.7802615884.

Adding to 2221325154 its reverse (4515231222), we get a palindrome (6736556376).

The spelling of 2221325154 in words is "two billion, two hundred twenty-one million, three hundred twenty-five thousand, one hundred fifty-four".