102011212120111 has 24 divisors (see below), whose sum is σ = 118770193332240. Its totient is φ = 87361492038912.

The previous prime is 102011212120093. The next prime is 102011212120121. The reversal of 102011212120111 is 111021212110201.

It is a de Polignac number, because none of the positive numbers 2^k-102011212120111 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 (102011212120121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1608749575 + ... + 1608812983.

It is an arithmetic number, because the mean of its divisors is an integer number (4948758055510).

Almost surely, 2^{102011212120111} is an apocalyptic number.

102011212120111 is a deficient number, since it is larger than the sum of its proper divisors (16758981212129).

102011212120111 is a wasteful number, since it uses less digits than its factorization.

102011212120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91703 (or 91696 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 102011212120111 its reverse (111021212110201), we get a palindrome (213032424230312).

The spelling of 102011212120111 in words is "one hundred two trillion, eleven billion, two hundred twelve million, one hundred twenty thousand, one hundred eleven".