2221204376 has 16 divisors (see below), whose sum is σ = 4176111840. Its totient is φ = 1107574560.

The previous prime is 2221204339. The next prime is 2221204379. The reversal of 2221204376 is 6734021222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221204379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 375335 + ... + 381206.

It is an arithmetic number, because the mean of its divisors is an integer number (261006990).

Almost surely, 2^2221204376 is an apocalyptic number.

It is an amenable number.

2221204376 is a deficient number, since it is larger than the sum of its proper divisors (1954907464).

2221204376 is a wasteful number, since it uses less digits than its factorization.

2221204376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756914 (or 756910 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 2221204376 is about 47129.6549531184. The cubic root of 2221204376 is about 1304.7566133011.

Adding to 2221204376 its reverse (6734021222), we get a palindrome (8955225598).

The spelling of 2221204376 in words is "two billion, two hundred twenty-one million, two hundred four thousand, three hundred seventy-six".