10101001020012 has 36 divisors (see below), whose sum is σ = 29180669614096. Its totient is φ = 2886000291360.

The previous prime is 10101001019959. The next prime is 10101001020067. The reversal of 10101001020012 is 21002010010101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 10101001019976 and 10101001020003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20041668439 + ... + 20041668942.

Almost surely, 2^{10101001020012} is an apocalyptic number.

10101001020012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10101001020012 is an abundant number, since it is smaller than the sum of its proper divisors (19079668594084).

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

10101001020012 is a wasteful number, since it uses less digits than its factorization.

10101001020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40083337398 (or 40083337393 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 10101001020012 its reverse (21002010010101), we get a palindrome (31103011030113).

The spelling of 10101001020012 in words is "ten trillion, one hundred one billion, one million, twenty thousand, twelve".