2221813374 has 48 divisors (see below), whose sum is σ = 5141418240. Its totient is φ = 637837200.

The previous prime is 2221813313. The next prime is 2221813387. The reversal of 2221813374 is 4733181222.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66742 + ... + 94329.

It is an arithmetic number, because the mean of its divisors is an integer number (107112880).

Almost surely, 2^2221813374 is an apocalyptic number.

2221813374 is an abundant number, since it is smaller than the sum of its proper divisors (2919604866).

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

2221813374 is a wasteful number, since it uses less digits than its factorization.

2221813374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161117 (or 161106 counting only the distinct ones).

The product of its digits is 16128, while the sum is 33.

The square root of 2221813374 is about 47136.1153893700. The cubic root of 2221813374 is about 1304.8758461474.

Adding to 2221813374 its reverse (4733181222), we get a palindrome (6954994596).

The spelling of 2221813374 in words is "two billion, two hundred twenty-one million, eight hundred thirteen thousand, three hundred seventy-four".