131050552221 has 12 divisors (see below), whose sum is σ = 200430256572. Its totient is φ = 82227797376.

The previous prime is 131050552219. The next prime is 131050552247. The reversal of 131050552221 is 122255050131.

131050552221 is a `hidden beast` number, since 1 + 3 + 105 + 0 + 552 + 2 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 103166228025 + 27884324196 = 321195^2 + 166986^2 .

It is not a de Polignac number, because 131050552221 - 2¹ = 131050552219 is a prime.

It is a super-3 number, since 3×131050552221³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131050552261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 428269626 + ... + 428269931.

It is an arithmetic number, because the mean of its divisors is an integer number (16702521381).

Almost surely, 2^131050552221 is an apocalyptic number.

It is an amenable number.

131050552221 is a deficient number, since it is larger than the sum of its proper divisors (69379704351).

131050552221 is a wasteful number, since it uses less digits than its factorization.

131050552221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856539580 (or 856539577 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The spelling of 131050552221 in words is "one hundred thirty-one billion, fifty million, five hundred fifty-two thousand, two hundred twenty-one".