212100210101010 has 128 divisors (see below), whose sum is σ = 634653908619264. Its totient is φ = 44072353762560.

The previous prime is 212100210100981. The next prime is 212100210101011. The reversal of 212100210101010 is 10101012001212.

It is not an unprimeable number, because it can be changed into a prime (212100210101011) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 283934859 + ... + 284680881.

It is an arithmetic number, because the mean of its divisors is an integer number (4958233661088).

Almost surely, 2^{212100210101010} is an apocalyptic number.

212100210101010 is an abundant number, since it is smaller than the sum of its proper divisors (422553698518254).

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

212100210101010 is a wasteful number, since it uses less digits than its factorization.

212100210101010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869128.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 212100210101010 its reverse (10101012001212), we get a palindrome (222201222102222).

The spelling of 212100210101010 in words is "two hundred twelve trillion, one hundred billion, two hundred ten million, one hundred one thousand, ten".