21222103332 has 48 divisors (see below), whose sum is σ = 50471128512. Its totient is φ = 6938006400.

The previous prime is 21222103307. The next prime is 21222103367. The reversal of 21222103332 is 23330122212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21222103299 and 21222103308.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2572318 + ... + 2580554.

It is an arithmetic number, because the mean of its divisors is an integer number (1051481844).

Almost surely, 2^21222103332 is an apocalyptic number.

It is an amenable number.

21222103332 is an abundant number, since it is smaller than the sum of its proper divisors (29249025180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21222103332 is a wasteful number, since it uses less digits than its factorization.

21222103332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12348 (or 12346 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 21222103332 its reverse (23330122212), we get a palindrome (44552225544).

The spelling of 21222103332 in words is "twenty-one billion, two hundred twenty-two million, one hundred three thousand, three hundred thirty-two".