131222400044 has 6 divisors (see below), whose sum is σ = 229639200084. Its totient is φ = 65611200020.

The previous prime is 131222400031. The next prime is 131222400079. The reversal of 131222400044 is 440004222131.

It is a junction number, because it is equal to n+sod(n) for n = 131222399992 and 131222400019.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16402800002 + ... + 16402800009.

It is an arithmetic number, because the mean of its divisors is an integer number (38273200014).

Almost surely, 2^131222400044 is an apocalyptic number.

It is an amenable number.

131222400044 is a deficient number, since it is larger than the sum of its proper divisors (98416800040).

131222400044 is a wasteful number, since it uses less digits than its factorization.

131222400044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32805600015 (or 32805600013 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 131222400044 its reverse (440004222131), we get a palindrome (571226622175).

The spelling of 131222400044 in words is "one hundred thirty-one billion, two hundred twenty-two million, four hundred thousand, forty-four".