1221444110332 has 12 divisors (see below), whose sum is σ = 2173756467960. Its totient is φ = 600370833776.

The previous prime is 1221444110311. The next prime is 1221444110351. The reversal of 1221444110332 is 2330114441221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1221444110332.

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 3 ways as a sum of consecutive naturals, for example, 2587805083 + ... + 2587805554.

It is an arithmetic number, because the mean of its divisors is an integer number (181146372330).

Almost surely, 2^{1221444110332} is an apocalyptic number.

It is an amenable number.

1221444110332 is a deficient number, since it is larger than the sum of its proper divisors (952312357628).

1221444110332 is a wasteful number, since it uses less digits than its factorization.

1221444110332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5175610700 (or 5175610698 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1221444110332 its reverse (2330114441221), we get a palindrome (3551558551553).

The spelling of 1221444110332 in words is "one trillion, two hundred twenty-one billion, four hundred forty-four million, one hundred ten thousand, three hundred thirty-two".