102012204012 has 12 divisors (see below), whose sum is σ = 238028476056. Its totient is φ = 34004068000.

The previous prime is 102012203981. The next prime is 102012204023. The reversal of 102012204012 is 210402210201.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×102012204012² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102012203982 and 102012204000.

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, 4250508489 + ... + 4250508512.

It is an arithmetic number, because the mean of its divisors is an integer number (19835706338).

Almost surely, 2^102012204012 is an apocalyptic number.

102012204012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102012204012 is an abundant number, since it is smaller than the sum of its proper divisors (136016272044).

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

102012204012 is a wasteful number, since it uses less digits than its factorization.

102012204012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8501017008 (or 8501017006 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102012204012 its reverse (210402210201), we get a palindrome (312414414213).

The spelling of 102012204012 in words is "one hundred two billion, twelve million, two hundred four thousand, twelve".