211221200203 has 12 divisors (see below), whose sum is σ = 228847132008. Its totient is φ = 194864030400.

The previous prime is 211221200159. The next prime is 211221200221. The reversal of 211221200203 is 302002122112.

It is a happy number.

It is not a de Polignac number, because 211221200203 - 2²⁹ = 210684329291 is a prime.

It is a super-2 number, since 2×211221200203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211221200303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47698 + ... + 651703.

It is an arithmetic number, because the mean of its divisors is an integer number (19070594334).

Almost surely, 2^211221200203 is an apocalyptic number.

211221200203 is a deficient number, since it is larger than the sum of its proper divisors (17625931805).

211221200203 is a wasteful number, since it uses less digits than its factorization.

211221200203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701214 (or 701201 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 211221200203 its reverse (302002122112), we get a palindrome (513223322315).

The spelling of 211221200203 in words is "two hundred eleven billion, two hundred twenty-one million, two hundred thousand, two hundred three".