10102021112191 has 2 divisors, whose sum is σ = 10102021112192. Its totient is φ = 10102021112190.

The previous prime is 10102021112189. The next prime is 10102021112251. The reversal of 10102021112191 is 19121112020101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10102021112191 - 2¹ = 10102021112189 is a prime.

Together with 10102021112189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10102021118191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051010556095 + 5051010556096.

It is an arithmetic number, because the mean of its divisors is an integer number (5051010556096).

Almost surely, 2^{10102021112191} is an apocalyptic number.

10102021112191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10102021112191 is an equidigital number, since it uses as much as digits as its factorization.

10102021112191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 22.

Adding to 10102021112191 its reverse (19121112020101), we get a palindrome (29223133132292).

The spelling of 10102021112191 in words is "ten trillion, one hundred two billion, twenty-one million, one hundred twelve thousand, one hundred ninety-one".