22121210332 has 24 divisors (see below), whose sum is σ = 43884184400. Its totient is φ = 9672431616.

The previous prime is 22121210329. The next prime is 22121210357. The reversal of 22121210332 is 23301212122.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11193957 + ... + 11195932.

Almost surely, 2^22121210332 is an apocalyptic number.

It is an amenable number.

22121210332 is a deficient number, since it is larger than the sum of its proper divisors (21762974068).

22121210332 is a wasteful number, since it uses less digits than its factorization.

22121210332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22389925 (or 22389923 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 22121210332 its reverse (23301212122), we get a palindrome (45422422454).

The spelling of 22121210332 in words is "twenty-two billion, one hundred twenty-one million, two hundred ten thousand, three hundred thirty-two".