211012102000000 has 448 divisors, whose sum is σ = 619902165150720. Its totient is φ = 70013088000000.

The previous prime is 211012101999989. The next prime is 211012102000013. The reversal of 211012102000000 is 201210112.

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-2 number, since 2×211012102000000² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 433756899 + ... + 434243101.

Almost surely, 2^{211012102000000} is an apocalyptic number.

211012102000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211012102000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309951082575360).

211012102000000 is an abundant number, since it is smaller than the sum of its proper divisors (408890063150720).

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

211012102000000 is an frugal number, since it uses more digits than its factorization.

211012102000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486285 (or 486248 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 211012102000000 its reverse (201210112), we get a palindrome (211012303210112).

The spelling of 211012102000000 in words is "two hundred eleven trillion, twelve billion, one hundred two million", and thus it is an aban number.