102120120021212 has 12 divisors (see below), whose sum is σ = 178710294542136. Its totient is φ = 51060035866320.

The previous prime is 102120120021211. The next prime is 102120120021253. The reversal of 102120120021212 is 212120021021201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120120021211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6266618 + ... + 15604830.

It is an arithmetic number, because the mean of its divisors is an integer number (14892524545178).

Almost surely, 2^{102120120021212} is an apocalyptic number.

It is an amenable number.

102120120021212 is a deficient number, since it is larger than the sum of its proper divisors (76590174520924).

102120120021212 is a wasteful number, since it uses less digits than its factorization.

102120120021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12072148 (or 12072146 counting only the distinct ones).

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

Adding to 102120120021212 its reverse (212120021021201), we get a palindrome (314240141042413).

The spelling of 102120120021212 in words is "one hundred two trillion, one hundred twenty billion, one hundred twenty million, twenty-one thousand, two hundred twelve".