109211209101 has 12 divisors (see below), whose sum is σ = 159145539228. Its totient is φ = 72163158144.

The previous prime is 109211209061. The next prime is 109211209111. The reversal of 109211209101 is 101902112901.

It can be written as a sum of positive squares in 2 ways, for example, as 3953139876 + 105258069225 = 62874^2 + 324435^2 .

It is not a de Polignac number, because 109211209101 - 2¹⁹ = 109210684813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109211209111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53691810 + ... + 53693843.

It is an arithmetic number, because the mean of its divisors is an integer number (13262128269).

Almost surely, 2^109211209101 is an apocalyptic number.

It is an amenable number.

109211209101 is a deficient number, since it is larger than the sum of its proper divisors (49934330127).

109211209101 is a wasteful number, since it uses less digits than its factorization.

109211209101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107385772 (or 107385769 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 27.

The spelling of 109211209101 in words is "one hundred nine billion, two hundred eleven million, two hundred nine thousand, one hundred one".