102021210201212 has 6 divisors (see below), whose sum is σ = 178537117852128. Its totient is φ = 51010605100604.

The previous prime is 102021210201193. The next prime is 102021210201221. The reversal of 102021210201212 is 212102012120201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12752651275148 + ... + 12752651275155.

It is an arithmetic number, because the mean of its divisors is an integer number (29756186308688).

Almost surely, 2^{102021210201212} is an apocalyptic number.

It is an amenable number.

102021210201212 is a deficient number, since it is larger than the sum of its proper divisors (76515907650916).

102021210201212 is a wasteful number, since it uses less digits than its factorization.

102021210201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25505302550307 (or 25505302550305 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102021210201212 its reverse (212102012120201), we get a palindrome (314123222321413).

The spelling of 102021210201212 in words is "one hundred two trillion, twenty-one billion, two hundred ten million, two hundred one thousand, two hundred twelve".