102001212001191 has 4 divisors (see below), whose sum is σ = 136001616001592. Its totient is φ = 68000808000792.

The previous prime is 102001212001159. The next prime is 102001212001259. The reversal of 102001212001191 is 191100212100201.

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

It is not a de Polignac number, because 102001212001191 - 2⁵ = 102001212001159 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 (102001012001191) 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, 17000202000196 + ... + 17000202000201.

It is an arithmetic number, because the mean of its divisors is an integer number (34000404000398).

Almost surely, 2^{102001212001191} is an apocalyptic number.

102001212001191 is a deficient number, since it is larger than the sum of its proper divisors (34000404000401).

102001212001191 is an equidigital number, since it uses as much as digits as its factorization.

102001212001191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34000404000400.

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

Adding to 102001212001191 its reverse (191100212100201), we get a palindrome (293101424101392).

The spelling of 102001212001191 in words is "one hundred two trillion, one billion, two hundred twelve million, one thousand, one hundred ninety-one".