102121020200212 has 24 divisors (see below), whose sum is σ = 195169533737472. Its totient is φ = 46468936600800.

The previous prime is 102121020200183. The next prime is 102121020200273. The reversal of 102121020200212 is 212002020121201.

It is a happy number.

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, 13830036964 + ... + 13830044347.

It is an arithmetic number, because the mean of its divisors is an integer number (8132063905728).

Almost surely, 2^{102121020200212} is an apocalyptic number.

It is an amenable number.

102121020200212 is a deficient number, since it is larger than the sum of its proper divisors (93048513537260).

102121020200212 is a wasteful number, since it uses less digits than its factorization.

102121020200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27660081399 (or 27660081397 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102121020200212 its reverse (212002020121201), we get a palindrome (314123040321413).

The spelling of 102121020200212 in words is "one hundred two trillion, one hundred twenty-one billion, twenty million, two hundred thousand, two hundred twelve".