102111012121012 has 12 divisors (see below), whose sum is σ = 180956224012480. Its totient is φ = 50409233831736.

The previous prime is 102111012120961. The next prime is 102111012121031. The reversal of 102111012121012 is 210121210111201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161568056838 + ... + 161568057469.

Almost surely, 2^{102111012121012} is an apocalyptic number.

It is an amenable number.

102111012121012 is a deficient number, since it is larger than the sum of its proper divisors (78845211891468).

102111012121012 is a wasteful number, since it uses less digits than its factorization.

102111012121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323136114390 (or 323136114388 counting only the distinct ones).

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

Adding to 102111012121012 its reverse (210121210111201), we get a palindrome (312232222232213).

The spelling of 102111012121012 in words is "one hundred two trillion, one hundred eleven billion, twelve million, one hundred twenty-one thousand, twelve".