102100210001212 has 12 divisors (see below), whose sum is σ = 178675439092696. Its totient is φ = 51050084546160.

The previous prime is 102100210001189. The next prime is 102100210001281. The reversal of 102100210001212 is 212100012001201.

It is a junction number, because it is equal to n+sod(n) for n = 102100210001192 and 102100210001201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14342998 + ... + 20246530.

Almost surely, 2^{102100210001212} is an apocalyptic number.

It is an amenable number.

102100210001212 is a deficient number, since it is larger than the sum of its proper divisors (76575229091484).

102100210001212 is a wasteful number, since it uses less digits than its factorization.

102100210001212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10227228 (or 10227226 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 102100210001212 its reverse (212100012001201), we get a palindrome (314200222002413).

The spelling of 102100210001212 in words is "one hundred two trillion, one hundred billion, two hundred ten million, one thousand, two hundred twelve".