102121021222112 has 24 divisors (see below), whose sum is σ = 203473058855976. Its totient is φ = 50445323734912.

The previous prime is 102121021222097. The next prime is 102121021222151. The reversal of 102121021222112 is 211222120121201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19224587183 + ... + 19224592494.

It is an arithmetic number, because the mean of its divisors is an integer number (8478044118999).

Almost surely, 2^{102121021222112} is an apocalyptic number.

It is an amenable number.

102121021222112 is a deficient number, since it is larger than the sum of its proper divisors (101352037633864).

102121021222112 is an equidigital number, since it uses as much as digits as its factorization.

102121021222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38449179770 (or 38449179762 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 102121021222112 its reverse (211222120121201), we get a palindrome (313343141343313).

The spelling of 102121021222112 in words is "one hundred two trillion, one hundred twenty-one billion, twenty-one million, two hundred twenty-two thousand, one hundred twelve".