131202222201191 has 4 divisors (see below), whose sum is σ = 131213198722992. Its totient is φ = 131191245679392.

The previous prime is 131202222201143. The next prime is 131202222201221. The reversal of 131202222201191 is 191102222202131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131202222201191 is a prime.

It is a super-2 number, since 2×131202222201191² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131202222201091) 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, 5488242971 + ... + 5488266876.

It is an arithmetic number, because the mean of its divisors is an integer number (32803299680748).

Almost surely, 2^{131202222201191} is an apocalyptic number.

131202222201191 is a deficient number, since it is larger than the sum of its proper divisors (10976521801).

131202222201191 is a wasteful number, since it uses less digits than its factorization.

131202222201191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10976521800.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 131202222201191 in words is "one hundred thirty-one trillion, two hundred two billion, two hundred twenty-two million, two hundred one thousand, one hundred ninety-one".