102102121210012 has 72 divisors (see below), whose sum is σ = 226779515036928. Its totient is φ = 39774214620000.

The previous prime is 102102121209989. The next prime is 102102121210013. The reversal of 102102121210012 is 210012121201201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102102121210013) 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, 11250637 + ... + 18187387.

It is an arithmetic number, because the mean of its divisors is an integer number (3149715486624).

Almost surely, 2^{102102121210012} is an apocalyptic number.

It is an amenable number.

102102121210012 is an abundant number, since it is smaller than the sum of its proper divisors (124677393826916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102102121210012 is a wasteful number, since it uses less digits than its factorization.

102102121210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6943607 (or 6943598 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102102121210012 its reverse (210012121201201), we get a palindrome (312114242411213).

The spelling of 102102121210012 in words is "one hundred two trillion, one hundred two billion, one hundred twenty-one million, two hundred ten thousand, twelve".