102112540524212 has 144 divisors (see below), whose sum is σ = 197116448477760. Its totient is φ = 46108287833088.

The previous prime is 102112540524191. The next prime is 102112540524217. The reversal of 102112540524212 is 212425045211201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102112540524217) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12570787583 + ... + 12570795705.

It is an arithmetic number, because the mean of its divisors is an integer number (1368864225540).

Almost surely, 2^{102112540524212} is an apocalyptic number.

It is an amenable number.

102112540524212 is a deficient number, since it is larger than the sum of its proper divisors (95003907953548).

102112540524212 is a wasteful number, since it uses less digits than its factorization.

102112540524212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9870 (or 9821 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

Adding to 102112540524212 its reverse (212425045211201), we get a palindrome (314537585735413).

The spelling of 102112540524212 in words is "one hundred two trillion, one hundred twelve billion, five hundred forty million, five hundred twenty-four thousand, two hundred twelve".