221210210220003 has 64 divisors (see below), whose sum is σ = 348602488012800. Its totient is φ = 138156310195200.

The previous prime is 221210210219917. The next prime is 221210210220007. The reversal of 221210210220003 is 300022012012122.

221210210220003 is a `hidden beast` number, since 2 + 21 + 210 + 210 + 220 + 0 + 0 + 3 = 666.

It is not a de Polignac number, because 221210210220003 - 2¹⁰ = 221210210218979 is a prime.

It is a super-2 number, since 2×221210210220003² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (221210210220007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 729551478 + ... + 729854628.

It is an arithmetic number, because the mean of its divisors is an integer number (5446913875200).

Almost surely, 2^{221210210220003} is an apocalyptic number.

221210210220003 is a deficient number, since it is larger than the sum of its proper divisors (127392277792797).

221210210220003 is a wasteful number, since it uses less digits than its factorization.

221210210220003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310529 (or 310523 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 221210210220003 its reverse (300022012012122), we get a palindrome (521232222232125).

The spelling of 221210210220003 in words is "two hundred twenty-one trillion, two hundred ten billion, two hundred ten million, two hundred twenty thousand, three".