102121000010 has 64 divisors (see below), whose sum is σ = 188994902400. Its totient is φ = 39716371200.

The previous prime is 102120999989. The next prime is 102121000019. The reversal of 102121000010 is 10000121201.

It is a Curzon number.

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 31 ways as a sum of consecutive naturals, for example, 23479316 + ... + 23483664.

It is an arithmetic number, because the mean of its divisors is an integer number (2953045350).

Almost surely, 2^102121000010 is an apocalyptic number.

102121000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102121000010 is a deficient number, since it is larger than the sum of its proper divisors (86873902390).

102121000010 is a wasteful number, since it uses less digits than its factorization.

102121000010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4871.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 102121000010 its reverse (10000121201), we get a palindrome (112121121211).

The spelling of 102121000010 in words is "one hundred two billion, one hundred twenty-one million, ten", and thus it is an aban number.