22101101020191 has 4 divisors (see below), whose sum is σ = 29468134693592. Its totient is φ = 14734067346792.

The previous prime is 22101101020189. The next prime is 22101101020213. The reversal of 22101101020191 is 19102010110122.

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

It is not a de Polignac number, because 22101101020191 - 2¹ = 22101101020189 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 (22101101020151) 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, 3683516836696 + ... + 3683516836701.

It is an arithmetic number, because the mean of its divisors is an integer number (7367033673398).

Almost surely, 2^{22101101020191} is an apocalyptic number.

22101101020191 is a deficient number, since it is larger than the sum of its proper divisors (7367033673401).

22101101020191 is an equidigital number, since it uses as much as digits as its factorization.

22101101020191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7367033673400.

The product of its (nonzero) digits is 72, while the sum is 21.

The spelling of 22101101020191 in words is "twenty-two trillion, one hundred one billion, one hundred one million, twenty thousand, one hundred ninety-one".