131222155350 has 96 divisors (see below), whose sum is σ = 382324529664. Its totient is φ = 29364393600.

The previous prime is 131222155327. The next prime is 131222155381. The reversal of 131222155350 is 53551222131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3037342 + ... + 3080241.

It is an arithmetic number, because the mean of its divisors is an integer number (3982547184).

Almost surely, 2^131222155350 is an apocalyptic number.

131222155350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131222155350 is an abundant number, since it is smaller than the sum of its proper divisors (251102374314).

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

131222155350 is a wasteful number, since it uses less digits than its factorization.

131222155350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6117622 (or 6117617 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 131222155350 its reverse (53551222131), we get a palindrome (184773377481).

The spelling of 131222155350 in words is "one hundred thirty-one billion, two hundred twenty-two million, one hundred fifty-five thousand, three hundred fifty".