221210211003 has 16 divisors (see below), whose sum is σ = 307781650176. Its totient is φ = 141056578080.

The previous prime is 221210210989. The next prime is 221210211007. The reversal of 221210211003 is 300112012122.

It is not a de Polignac number, because 221210211003 - 2⁵ = 221210210971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221210211007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3516876 + ... + 3579222.

It is an arithmetic number, because the mean of its divisors is an integer number (19236353136).

Almost surely, 2^221210211003 is an apocalyptic number.

221210211003 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

221210211003 is a deficient number, since it is larger than the sum of its proper divisors (86571439173).

221210211003 is a wasteful number, since it uses less digits than its factorization.

221210211003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113794.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 221210211003 its reverse (300112012122), we get a palindrome (521322223125).

The spelling of 221210211003 in words is "two hundred twenty-one billion, two hundred ten million, two hundred eleven thousand, three".