211210121010012 has 48 divisors (see below), whose sum is σ = 493185254933280. Its totient is φ = 70351714464768.

The previous prime is 211210121009983. The next prime is 211210121010013. The reversal of 211210121010012 is 210010121012112.

It is a happy number.

It is a super-3 number, since 3×211210121010012³ (a number of 44 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211210121009973 and 211210121010000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211210121010013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512802414 + ... + 513214122.

It is an arithmetic number, because the mean of its divisors is an integer number (10274692811110).

Almost surely, 2^{211210121010012} is an apocalyptic number.

It is an amenable number.

211210121010012 is an abundant number, since it is smaller than the sum of its proper divisors (281975133923268).

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

211210121010012 is a wasteful number, since it uses less digits than its factorization.

211210121010012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442982 (or 442980 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211210121010012 its reverse (210010121012112), we get a palindrome (421220242022124).

The spelling of 211210121010012 in words is "two hundred eleven trillion, two hundred ten billion, one hundred twenty-one million, ten thousand, twelve".