100211020020091 has 4 divisors (see below), whose sum is σ = 100218744616432. Its totient is φ = 100203295423752.

The previous prime is 100211020020047. The next prime is 100211020020103. The reversal of 100211020020091 is 190020020112001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100211020020091 - 2²³ = 100211011631483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100211020020011) 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, 3862278711 + ... + 3862304656.

It is an arithmetic number, because the mean of its divisors is an integer number (25054686154108).

Almost surely, 2^{100211020020091} is an apocalyptic number.

100211020020091 is a deficient number, since it is larger than the sum of its proper divisors (7724596341).

100211020020091 is an equidigital number, since it uses as much as digits as its factorization.

100211020020091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7724596340.

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

Adding to 100211020020091 its reverse (190020020112001), we get a palindrome (290231040132092).

The spelling of 100211020020091 in words is "one hundred trillion, two hundred eleven billion, twenty million, twenty thousand, ninety-one".