101100222109 has 4 divisors (see below), whose sum is σ = 101613421404. Its totient is φ = 100587022816.

The previous prime is 101100222071. The next prime is 101100222131. The reversal of 101100222109 is 901222001101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 901222001101 = 449 ⋅2007175949.

It can be written as a sum of positive squares in 2 ways, for example, as 51348919609 + 49751302500 = 226603^2 + 223050^2 .

It is a cyclic number.

It is not a de Polignac number, because 101100222109 - 2¹⁹ = 101099697821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101100222709) 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, 256599352 + ... + 256599745.

It is an arithmetic number, because the mean of its divisors is an integer number (25403355351).

Almost surely, 2^101100222109 is an apocalyptic number.

It is an amenable number.

101100222109 is a deficient number, since it is larger than the sum of its proper divisors (513199295).

101100222109 is an equidigital number, since it uses as much as digits as its factorization.

101100222109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513199294.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 101100222109 in words is "one hundred one billion, one hundred million, two hundred twenty-two thousand, one hundred nine".