212101101101012 has 12 divisors (see below), whose sum is σ = 371400932325780. Its totient is φ = 105986549007936.

The previous prime is 212101101101009. The next prime is 212101101101047. The reversal of 212101101101012 is 210101101101212.

It can be written as a sum of positive squares in 2 ways, for example, as 144832463652496 + 67268637448516 = 12034636^2 + 8201746^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16000378187 + ... + 16000391442.

It is an arithmetic number, because the mean of its divisors is an integer number (30950077693815).

Almost surely, 2^{212101101101012} is an apocalyptic number.

It is an amenable number.

212101101101012 is a deficient number, since it is larger than the sum of its proper divisors (159299831224768).

212101101101012 is a wasteful number, since it uses less digits than its factorization.

212101101101012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32000771290 (or 32000771288 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 212101101101012 its reverse (210101101101212), we get a palindrome (422202202202224).

The spelling of 212101101101012 in words is "two hundred twelve trillion, one hundred one billion, one hundred one million, one hundred one thousand, twelve".