21211000232 has 32 divisors (see below), whose sum is σ = 42345374400. Its totient is φ = 9925872384.

The previous prime is 21211000211. The next prime is 21211000267. The reversal of 21211000232 is 23200011212.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 411308 + ... + 459995.

It is an arithmetic number, because the mean of its divisors is an integer number (1323292950).

Almost surely, 2^21211000232 is an apocalyptic number.

It is an amenable number.

21211000232 is a deficient number, since it is larger than the sum of its proper divisors (21134374168).

21211000232 is a wasteful number, since it uses less digits than its factorization.

21211000232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871505 (or 871501 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21211000232 its reverse (23200011212), we get a palindrome (44411011444).

The spelling of 21211000232 in words is "twenty-one billion, two hundred eleven million, two hundred thirty-two", and thus it is an aban number.