12221021210332 has 18 divisors (see below), whose sum is σ = 23507790800144. Its totient is φ = 5555009640840.

The previous prime is 12221021210329. The next prime is 12221021210339. The reversal of 12221021210332 is 23301212012221.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221021210339) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 12625021428 + ... + 12625022395.

Almost surely, 2^{12221021210332} is an apocalyptic number.

It is an amenable number.

12221021210332 is a deficient number, since it is larger than the sum of its proper divisors (11286769589812).

12221021210332 is a wasteful number, since it uses less digits than its factorization.

12221021210332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25250043849 (or 25250043836 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12221021210332 its reverse (23301212012221), we get a palindrome (35522233222553).

The spelling of 12221021210332 in words is "twelve trillion, two hundred twenty-one billion, twenty-one million, two hundred ten thousand, three hundred thirty-two".