1031211221044 has 24 divisors (see below), whose sum is σ = 1805895338240. Its totient is φ = 515241264384.

The previous prime is 1031211221039. The next prime is 1031211221083. The reversal of 1031211221044 is 4401221121301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35516317 + ... + 35545339.

Almost surely, 2^{1031211221044} is an apocalyptic number.

It is an amenable number.

1031211221044 is a deficient number, since it is larger than the sum of its proper divisors (774684117196).

1031211221044 is a wasteful number, since it uses less digits than its factorization.

1031211221044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34999 (or 34997 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1031211221044 its reverse (4401221121301), we get a palindrome (5432432342345).

The spelling of 1031211221044 in words is "one trillion, thirty-one billion, two hundred eleven million, two hundred twenty-one thousand, forty-four".