102111211112102 has 16 divisors (see below), whose sum is σ = 161228883341040. Its totient is φ = 48368271840768.

The previous prime is 102111211112081. The next prime is 102111211112117. The reversal of 102111211112102 is 201211112111201.

It is a super-2 number, since 2×102111211112102² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4235918 + ... + 14905214.

It is an arithmetic number, because the mean of its divisors is an integer number (10076805208815).

Almost surely, 2^{102111211112102} is an apocalyptic number.

102111211112102 is a deficient number, since it is larger than the sum of its proper divisors (59117672228938).

102111211112102 is a wasteful number, since it uses less digits than its factorization.

102111211112102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10921175.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 102111211112102 its reverse (201211112111201), we get a palindrome (303322323223303).

Subtracting 102111211112102 from its reverse (201211112111201), we obtain a palindrome (99099900999099).

The spelling of 102111211112102 in words is "one hundred two trillion, one hundred eleven billion, two hundred eleven million, one hundred twelve thousand, one hundred two".