100011222091 has 8 divisors (see below), whose sum is σ = 110891728368. Its totient is φ = 89428812000.

The previous prime is 100011222079. The next prime is 100011222107. The reversal of 100011222091 is 190222110001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100011222091 - 2¹³ = 100011213899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100011222001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74523340 + ... + 74524681.

It is an arithmetic number, because the mean of its divisors is an integer number (13861466046).

Almost surely, 2^100011222091 is an apocalyptic number.

100011222091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100011222091 is a deficient number, since it is larger than the sum of its proper divisors (10880506277).

100011222091 is a wasteful number, since it uses less digits than its factorization.

100011222091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149048093.

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

Adding to 100011222091 its reverse (190222110001), we get a palindrome (290233332092).

The spelling of 100011222091 in words is "one hundred billion, eleven million, two hundred twenty-two thousand, ninety-one".