201122109 has 24 divisors (see below), whose sum is σ = 302195712. Its totient is φ = 133669440.

The previous prime is 201122101. The next prime is 201122161. The reversal of 201122109 is 901221102.

201122109 is nontrivially palindromic in base 6.

It is not a de Polignac number, because 201122109 - 2³ = 201122101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201122091 and 201122100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201122101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91989 + ... + 94149.

It is an arithmetic number, because the mean of its divisors is an integer number (12591488).

Almost surely, 2^201122109 is an apocalyptic number.

It is an amenable number.

201122109 is a deficient number, since it is larger than the sum of its proper divisors (101073603).

201122109 is an equidigital number, since it uses as much as digits as its factorization.

201122109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559 (or 2547 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 201122109 is about 14181.7526772963. The cubic root of 201122109 is about 585.8951974708.

The spelling of 201122109 in words is "two hundred one million, one hundred twenty-two thousand, one hundred nine".