131211222332444 has 48 divisors (see below), whose sum is σ = 235182236135616. Its totient is φ = 64037309683200.

The previous prime is 131211222332417. The next prime is 131211222332479. The reversal of 131211222332444 is 444233222112131.

It is a congruent number.

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, 9992114 + ... + 19033254.

It is an arithmetic number, because the mean of its divisors is an integer number (4899629919492).

Almost surely, 2^{131211222332444} is an apocalyptic number.

It is an amenable number.

131211222332444 is a deficient number, since it is larger than the sum of its proper divisors (103971013803172).

131211222332444 is a wasteful number, since it uses less digits than its factorization.

131211222332444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9041726 (or 9041724 counting only the distinct ones).

The product of its digits is 55296, while the sum is 35.

Adding to 131211222332444 its reverse (444233222112131), we get a palindrome (575444444444575).

The spelling of 131211222332444 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred twenty-two million, three hundred thirty-two thousand, four hundred forty-four".