1220211003 has 16 divisors (see below), whose sum is σ = 1775511936. Its totient is φ = 739247040.

The previous prime is 1220211001. The next prime is 1220211007. The reversal of 1220211003 is 3001120221.

It is not a de Polignac number, because 1220211003 - 2¹ = 1220211001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220211003.

It is not an unprimeable number, because it can be changed into a prime (1220211001) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 116176 + ... + 126242.

It is an arithmetic number, because the mean of its divisors is an integer number (110969496).

Almost surely, 2^1220211003 is an apocalyptic number.

1220211003 is a deficient number, since it is larger than the sum of its proper divisors (555300933).

1220211003 is a wasteful number, since it uses less digits than its factorization.

1220211003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13754.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1220211003 is about 34931.5187617143. The cubic root of 1220211003 is about 1068.5913285045.

Adding to 1220211003 its reverse (3001120221), we get a palindrome (4221331224).

The spelling of 1220211003 in words is "one billion, two hundred twenty million, two hundred eleven thousand, three".