102100120021212 has 48 divisors (see below), whose sum is σ = 245769545398272. Its totient is φ = 32965061140800.

The previous prime is 102100120021183. The next prime is 102100120021247. The reversal of 102100120021212 is 212120021001201.

It is a junction number, because it is equal to n+sod(n) for n = 102100120021191 and 102100120021200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 515495664 + ... + 515693687.

It is an arithmetic number, because the mean of its divisors is an integer number (5120198862464).

Almost surely, 2^{102100120021212} is an apocalyptic number.

102100120021212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102100120021212 is an abundant number, since it is smaller than the sum of its proper divisors (143669425377060).

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

102100120021212 is a wasteful number, since it uses less digits than its factorization.

102100120021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1031189618 (or 1031189616 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 102100120021212 its reverse (212120021001201), we get a palindrome (314220141022413).

The spelling of 102100120021212 in words is "one hundred two trillion, one hundred billion, one hundred twenty million, twenty-one thousand, two hundred twelve".