109201109181 has 48 divisors (see below), whose sum is σ = 159128773440. Its totient is φ = 66424458240.

The previous prime is 109201109177. The next prime is 109201109183. The reversal of 109201109181 is 181901102901.

It is not a de Polignac number, because 109201109181 - 2² = 109201109177 is a prime.

It is a super-2 number, since 2×109201109181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109201109183) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20754091 + ... + 20759351.

It is an arithmetic number, because the mean of its divisors is an integer number (3315182780).

Almost surely, 2^109201109181 is an apocalyptic number.

It is an amenable number.

109201109181 is a deficient number, since it is larger than the sum of its proper divisors (49927664259).

109201109181 is a wasteful number, since it uses less digits than its factorization.

109201109181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5774 (or 5745 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 33.

The spelling of 109201109181 in words is "one hundred nine billion, two hundred one million, one hundred nine thousand, one hundred eighty-one".