102121121012 has 24 divisors (see below), whose sum is σ = 184801581216. Its totient is φ = 49349428128.

The previous prime is 102121120987. The next prime is 102121121051. The reversal of 102121121012 is 210121121201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3580598 + ... + 3609005.

It is an arithmetic number, because the mean of its divisors is an integer number (7700065884).

Almost surely, 2^102121121012 is an apocalyptic number.

It is an amenable number.

102121121012 is a deficient number, since it is larger than the sum of its proper divisors (82680460204).

102121121012 is a wasteful number, since it uses less digits than its factorization.

102121121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7189727 (or 7189725 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102121121012 its reverse (210121121201), we get a palindrome (312242242213).

The spelling of 102121121012 in words is "one hundred two billion, one hundred twenty-one million, one hundred twenty-one thousand, twelve".