201122210109 has 16 divisors (see below), whose sum is σ = 268632729792. Its totient is φ = 133846666368.

The previous prime is 201122210053. The next prime is 201122210147. The reversal of 201122210109 is 901012221102.

It is not a de Polignac number, because 201122210109 - 2⁸ = 201122209853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201122210189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18383689 + ... + 18394625.

It is an arithmetic number, because the mean of its divisors is an integer number (16789545612).

Almost surely, 2^201122210109 is an apocalyptic number.

It is an amenable number.

201122210109 is a deficient number, since it is larger than the sum of its proper divisors (67510519683).

201122210109 is a wasteful number, since it uses less digits than its factorization.

201122210109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21116.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 201122210109 in words is "two hundred one billion, one hundred twenty-two million, two hundred ten thousand, one hundred nine".