2221122003 has 8 divisors (see below), whose sum is σ = 2994771600. Its totient is φ = 1464110208.

The previous prime is 2221121999. The next prime is 2221122019. The reversal of 2221122003 is 3002211222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2221122003 - 2² = 2221121999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2221122023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4159138 + ... + 4159671.

It is an arithmetic number, because the mean of its divisors is an integer number (374346450).

Almost surely, 2^2221122003 is an apocalyptic number.

2221122003 is a deficient number, since it is larger than the sum of its proper divisors (773649597).

2221122003 is an equidigital number, since it uses as much as digits as its factorization.

2221122003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8318901.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2221122003 is about 47128.7810472539. The cubic root of 2221122003 is about 1304.7404842067.

Adding to 2221122003 its reverse (3002211222), we get a palindrome (5223333225).

It can be divided in two parts, 222112 and 2003, that added together give a triangular number (224115 = T₆₆₉).

The spelling of 2221122003 in words is "two billion, two hundred twenty-one million, one hundred twenty-two thousand, three".