10021212010012 has 96 divisors (see below), whose sum is σ = 20921889945600. Its totient is φ = 4109055992832.

The previous prime is 10021212009883. The next prime is 10021212010013. The reversal of 10021212010012 is 21001021212001.

It is a super-3 number, since 3×10021212010012³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10021212009974 and 10021212010001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021212010013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 503088189 + ... + 503108107.

It is an arithmetic number, because the mean of its divisors is an integer number (217936353600).

Almost surely, 2^{10021212010012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10021212010012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10460944972800).

10021212010012 is an abundant number, since it is smaller than the sum of its proper divisors (10900677935588).

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

10021212010012 is a wasteful number, since it uses less digits than its factorization.

10021212010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25555 (or 25553 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 10021212010012 its reverse (21001021212001), we get a palindrome (31022233222013).

The spelling of 10021212010012 in words is "ten trillion, twenty-one billion, two hundred twelve million, ten thousand, twelve".