131222321210442 has 64 divisors (see below), whose sum is σ = 327682779208704. Its totient is φ = 34033816755840.

The previous prime is 131222321210429. The next prime is 131222321210459. The reversal of 131222321210442 is 244012123222131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207613443 + ... + 208244534.

It is an arithmetic number, because the mean of its divisors is an integer number (5120043425136).

Almost surely, 2^{131222321210442} is an apocalyptic number.

131222321210442 is an abundant number, since it is smaller than the sum of its proper divisors (196460457998262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131222321210442 is a wasteful number, since it uses less digits than its factorization.

131222321210442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415858683.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 131222321210442 its reverse (244012123222131), we get a palindrome (375234444432573).

The spelling of 131222321210442 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, three hundred twenty-one million, two hundred ten thousand, four hundred forty-two".