102111001210112 has 18 divisors (see below), whose sum is σ = 203823131322258. Its totient is φ = 51055500604928.

The previous prime is 102111001210111. The next prime is 102111001210123. The reversal of 102111001210112 is 211012100111201.

It can be written as a sum of positive squares in only one way, i.e., 95877310556416 + 6233690653696 = 9791696^2 + 2496736^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102111001210111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199435548983 + ... + 199435549494.

It is an arithmetic number, because the mean of its divisors is an integer number (11323507295681).

Almost surely, 2^{102111001210112} is an apocalyptic number.

It is an amenable number.

102111001210112 is a deficient number, since it is larger than the sum of its proper divisors (101712130112146).

102111001210112 is an frugal number, since it uses more digits than its factorization.

102111001210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398871098493 (or 398871098479 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 102111001210112 its reverse (211012100111201), we get a palindrome (313123101321313).

The spelling of 102111001210112 in words is "one hundred two trillion, one hundred eleven billion, one million, two hundred ten thousand, one hundred twelve".