102121000012 has 12 divisors (see below), whose sum is σ = 178722101376. Its totient is φ = 51057542480.

The previous prime is 102120999989. The next prime is 102121000019. The reversal of 102121000012 is 210000121201.

It is not an unprimeable number, because it can be changed into a prime (102121000019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660763 + ... + 800530.

It is an arithmetic number, because the mean of its divisors is an integer number (14893508448).

Almost surely, 2^102121000012 is an apocalyptic number.

It is an amenable number.

102121000012 is a deficient number, since it is larger than the sum of its proper divisors (76601101364).

102121000012 is a wasteful number, since it uses less digits than its factorization.

102121000012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1478768 (or 1478766 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 102121000012 its reverse (210000121201), we get a palindrome (312121121213).

The spelling of 102121000012 in words is "one hundred two billion, one hundred twenty-one million, twelve", and thus it is an aban number.