102001212012 has 72 divisors (see below), whose sum is σ = 276916086720. Its totient is φ = 29137345440.

The previous prime is 102001212011. The next prime is 102001212023. The reversal of 102001212012 is 210212100201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (102001212011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3520039 + ... + 3548897.

It is an arithmetic number, because the mean of its divisors is an integer number (3846056760).

Almost surely, 2^102001212012 is an apocalyptic number.

102001212012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102001212012 is an abundant number, since it is smaller than the sum of its proper divisors (174914874708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102001212012 is a wasteful number, since it uses less digits than its factorization.

102001212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34891 (or 34882 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 102001212012 its reverse (210212100201), we get a palindrome (312213312213).

The spelling of 102001212012 in words is "one hundred two billion, one million, two hundred twelve thousand, twelve".