211221132230 has 16 divisors (see below), whose sum is σ = 381611418480. Its totient is φ = 84174368352.

The previous prime is 211221132229. The next prime is 211221132263. The reversal of 211221132230 is 32231122112.

211221132230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211221132230² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39257744 + ... + 39263123.

It is an arithmetic number, because the mean of its divisors is an integer number (23850713655).

Almost surely, 2^211221132230 is an apocalyptic number.

211221132230 is a deficient number, since it is larger than the sum of its proper divisors (170390286250).

211221132230 is a wasteful number, since it uses less digits than its factorization.

211221132230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78521143.

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

Adding to 211221132230 its reverse (32231122112), we get a palindrome (243452254342).

The spelling of 211221132230 in words is "two hundred eleven billion, two hundred twenty-one million, one hundred thirty-two thousand, two hundred thirty".