2221142323204 has 12 divisors (see below), whose sum is σ = 4442284646464. Its totient is φ = 951918138504.

The previous prime is 2221142323187. The next prime is 2221142323207. The reversal of 2221142323204 is 4023232411222.

2221142323204 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 79326511543 = 2221142323204 / (2 + 2 + 2 + 1 + 1 + 4 + 2 + 3 + 2 + 3 + 2 + 0 + 4).

It is not an unprimeable number, because it can be changed into a prime (2221142323207) 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, 39663255744 + ... + 39663255799.

Almost surely, 2^{2221142323204} is an apocalyptic number.

It is an amenable number.

2221142323204 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.

2221142323204 is a wasteful number, since it uses less digits than its factorization.

2221142323204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79326511554 (or 79326511552 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 2221142323204 its reverse (4023232411222), we get a palindrome (6244374734426).

The spelling of 2221142323204 in words is "two trillion, two hundred twenty-one billion, one hundred forty-two million, three hundred twenty-three thousand, two hundred four".