102120021220012 has 12 divisors (see below), whose sum is σ = 188115828563320. Its totient is φ = 48372641630496.

The previous prime is 102120021220003. The next prime is 102120021220043. The reversal of 102120021220012 is 210022120021201.

It is a happy 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, 671842244793 + ... + 671842244944.

Almost surely, 2^{102120021220012} is an apocalyptic number.

It is an amenable number.

102120021220012 is a deficient number, since it is larger than the sum of its proper divisors (85995807343308).

102120021220012 is a wasteful number, since it uses less digits than its factorization.

102120021220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343684489760 (or 1343684489758 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102120021220012 its reverse (210022120021201), we get a palindrome (312142141241213).

The spelling of 102120021220012 in words is "one hundred two trillion, one hundred twenty billion, twenty-one million, two hundred twenty thousand, twelve".