131222311132242 has 16 divisors (see below), whose sum is σ = 286303224288672. Its totient is φ = 39764336706720.

The previous prime is 131222311132141. The next prime is 131222311132243. The reversal of 131222311132242 is 242231113222131.

It is not an unprimeable number, because it can be changed into a prime (131222311132243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994108417603 + ... + 994108417734.

It is an arithmetic number, because the mean of its divisors is an integer number (17893951518042).

Almost surely, 2^{131222311132242} is an apocalyptic number.

131222311132242 is an abundant number, since it is smaller than the sum of its proper divisors (155080913156430).

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

131222311132242 is a wasteful number, since it uses less digits than its factorization.

131222311132242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988216835353.

The product of its digits is 6912, while the sum is 30.

Adding to 131222311132242 its reverse (242231113222131), we get a palindrome (373453424354373).

The spelling of 131222311132242 in words is "one hundred thirty-one trillion, two hundred twenty-two billion, three hundred eleven million, one hundred thirty-two thousand, two hundred forty-two".