131221445250119 has 4 divisors (see below), whose sum is σ = 149967366000144. Its totient is φ = 112475524500096.

The previous prime is 131221445250097. The next prime is 131221445250131. The reversal of 131221445250119 is 911052544122131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131221445250119 - 2⁸ = 131221445249863 is a prime.

It is a super-2 number, since 2×131221445250119² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131221445250139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9372960375002 + ... + 9372960375015.

It is an arithmetic number, because the mean of its divisors is an integer number (37491841500036).

Almost surely, 2^{131221445250119} is an apocalyptic number.

131221445250119 is a deficient number, since it is larger than the sum of its proper divisors (18745920750025).

131221445250119 is an equidigital number, since it uses as much as digits as its factorization.

131221445250119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18745920750024.

The product of its (nonzero) digits is 86400, while the sum is 41.

The spelling of 131221445250119 in words is "one hundred thirty-one trillion, two hundred twenty-one billion, four hundred forty-five million, two hundred fifty thousand, one hundred nineteen".