212001200002105 has 16 divisors (see below), whose sum is σ = 257024940600960. Its totient is φ = 167851970560512.

The previous prime is 212001200002087. The next prime is 212001200002121. The reversal of 212001200002105 is 501200002100212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212001200002105 - 2²⁵ = 212001166447673 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245142772 + ... + 246006058.

It is an arithmetic number, because the mean of its divisors is an integer number (16064058787560).

Almost surely, 2^{212001200002105} is an apocalyptic number.

It is an amenable number.

212001200002105 is a deficient number, since it is larger than the sum of its proper divisors (45023740598855).

212001200002105 is an equidigital number, since it uses as much as digits as its factorization.

212001200002105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369728.

The product of its (nonzero) digits is 80, while the sum is 16.

Adding to 212001200002105 its reverse (501200002100212), we get a palindrome (713201202102317).

The spelling of 212001200002105 in words is "two hundred twelve trillion, one billion, two hundred million, two thousand, one hundred five".