102012201111 has 8 divisors (see below), whose sum is σ = 136022953600. Its totient is φ = 68004791352.

The previous prime is 102012201059. The next prime is 102012201113. The reversal of 102012201111 is 111102210201.

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

It is not a de Polignac number, because 102012201111 - 2⁹ = 102012200599 is a prime.

It is a super-2 number, since 2×102012201111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012201113) 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, 763585 + ... + 887178.

It is an arithmetic number, because the mean of its divisors is an integer number (17002869200).

Almost surely, 2^102012201111 is an apocalyptic number.

102012201111 is a deficient number, since it is larger than the sum of its proper divisors (34010752489).

102012201111 is a wasteful number, since it uses less digits than its factorization.

102012201111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1671365.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102012201111 its reverse (111102210201), we get a palindrome (213114411312).

The spelling of 102012201111 in words is "one hundred two billion, twelve million, two hundred one thousand, one hundred eleven".