211221140303 has 16 divisors (see below), whose sum is σ = 226119729600. Its totient is φ = 196605136896.

The previous prime is 211221140281. The next prime is 211221140329. The reversal of 211221140303 is 303041122112.

It is a cyclic number.

It is not a de Polignac number, because 211221140303 - 2¹² = 211221136207 is a prime.

It is a super-2 number, since 2×211221140303² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211221140003) 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, 757598 + ... + 998196.

It is an arithmetic number, because the mean of its divisors is an integer number (14132483100).

Almost surely, 2^211221140303 is an apocalyptic number.

211221140303 is a deficient number, since it is larger than the sum of its proper divisors (14898589297).

211221140303 is a wasteful number, since it uses less digits than its factorization.

211221140303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241186.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 211221140303 its reverse (303041122112), we get a palindrome (514262262415).

The spelling of 211221140303 in words is "two hundred eleven billion, two hundred twenty-one million, one hundred forty thousand, three hundred three".