21211003222232 has 32 divisors (see below), whose sum is σ = 42110367868800. Its totient is φ = 9981580322304.

The previous prime is 21211003222207. The next prime is 21211003222259. The reversal of 21211003222232 is 23222230011212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21211003222198 and 21211003222207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23346494 + ... + 24238002.

It is an arithmetic number, because the mean of its divisors is an integer number (1315948995900).

Almost surely, 2^{21211003222232} is an apocalyptic number.

It is an amenable number.

21211003222232 is a deficient number, since it is larger than the sum of its proper divisors (20899364646568).

21211003222232 is a wasteful number, since it uses less digits than its factorization.

21211003222232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066475 (or 1066471 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21211003222232 its reverse (23222230011212), we get a palindrome (44433233233444).

The spelling of 21211003222232 in words is "twenty-one trillion, two hundred eleven billion, three million, two hundred twenty-two thousand, two hundred thirty-two".