211420221003 has 24 divisors (see below), whose sum is σ = 310026033408. Its totient is φ = 138810402432.

The previous prime is 211420220981. The next prime is 211420221011. The reversal of 211420221003 is 300122024112.

It is a happy number.

211420221003 is a `hidden beast` number, since 21 + 1 + 420 + 221 + 0 + 0 + 3 = 666.

It is not a de Polignac number, because 211420221003 - 2⁵ = 211420220971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211420221403) 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 23 ways as a sum of consecutive naturals, for example, 207126 + ... + 682452.

It is an arithmetic number, because the mean of its divisors is an integer number (12917751392).

Almost surely, 2^211420221003 is an apocalyptic number.

211420221003 is a deficient number, since it is larger than the sum of its proper divisors (98605812405).

211420221003 is a wasteful number, since it uses less digits than its factorization.

211420221003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476083 (or 476080 counting only the distinct ones).

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

Adding to 211420221003 its reverse (300122024112), we get a palindrome (511542245115).

The spelling of 211420221003 in words is "two hundred eleven billion, four hundred twenty million, two hundred twenty-one thousand, three".