102212110191 has 8 divisors (see below), whose sum is σ = 137632148784. Its totient is φ = 67466739200.

The previous prime is 102212110163. The next prime is 102212110199. The reversal of 102212110191 is 191011212201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102212110191 - 2⁶ = 102212110127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102212110199) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168666546 + ... + 168667151.

It is an arithmetic number, because the mean of its divisors is an integer number (17204018598).

Almost surely, 2^102212110191 is an apocalyptic number.

102212110191 is a deficient number, since it is larger than the sum of its proper divisors (35420038593).

102212110191 is a wasteful number, since it uses less digits than its factorization.

102212110191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337333801.

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

Adding to 102212110191 its reverse (191011212201), we get a palindrome (293223322392).

The spelling of 102212110191 in words is "one hundred two billion, two hundred twelve million, one hundred ten thousand, one hundred ninety-one".