2003221142 has 16 divisors (see below), whose sum is σ = 3236853312. Its totient is φ = 924312000.

The previous prime is 2003221127. The next prime is 2003221183. The reversal of 2003221142 is 2411223002.

It is a self number, because there is not a number n which added to its sum of digits gives 2003221142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115418 + ... + 131634.

It is an arithmetic number, because the mean of its divisors is an integer number (202303332).

Almost surely, 2^2003221142 is an apocalyptic number.

2003221142 is a deficient number, since it is larger than the sum of its proper divisors (1233632170).

2003221142 is a wasteful number, since it uses less digits than its factorization.

2003221142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20983.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2003221142 is about 44757.3585234875. The cubic root of 2003221142 is about 1260.5970845258.

Adding to 2003221142 its reverse (2411223002), we get a palindrome (4414444144).

The spelling of 2003221142 in words is "two billion, three million, two hundred twenty-one thousand, one hundred forty-two".