100211120091 has 12 divisors (see below), whose sum is σ = 144860501968. Its totient is φ = 66756133584.

The previous prime is 100211120081. The next prime is 100211120131. The reversal of 100211120091 is 190021112001.

It is a happy number.

It is not a de Polignac number, because 100211120091 - 2¹⁰ = 100211119067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100211120081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4260940 + ... + 4284393.

Almost surely, 2^100211120091 is an apocalyptic number.

100211120091 is a deficient number, since it is larger than the sum of its proper divisors (44649381877).

100211120091 is a wasteful number, since it uses less digits than its factorization.

100211120091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8546642 (or 8546639 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 100211120091 its reverse (190021112001), we get a palindrome (290232232092).

The spelling of 100211120091 in words is "one hundred billion, two hundred eleven million, one hundred twenty thousand, ninety-one".