212100212121010 has 16 divisors (see below), whose sum is σ = 384694735879872. Its totient is φ = 84192450612400.

The previous prime is 212100212120989. The next prime is 212100212121041. The reversal of 212100212121010 is 10121212001212.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80954278126 + ... + 80954280745.

It is an arithmetic number, because the mean of its divisors is an integer number (24043420992492).

Almost surely, 2^{212100212121010} is an apocalyptic number.

212100212121010 is a deficient number, since it is larger than the sum of its proper divisors (172594523758862).

212100212121010 is a wasteful number, since it uses less digits than its factorization.

212100212121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161908559009.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212100212121010 its reverse (10121212001212), we get a palindrome (222221424122222).

The spelling of 212100212121010 in words is "two hundred twelve trillion, one hundred billion, two hundred twelve million, one hundred twenty-one thousand, ten".