201212001211205 has 16 divisors (see below), whose sum is σ = 245475229186944. Its totient is φ = 158290394498880.

The previous prime is 201212001211187. The next prime is 201212001211219. The reversal of 201212001211205 is 502112100212102.

It is not a de Polignac number, because 201212001211205 - 2¹⁸ = 201212000949061 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 82886009 + ... + 85279038.

It is an arithmetic number, because the mean of its divisors is an integer number (15342201824184).

Almost surely, 2^{201212001211205} is an apocalyptic number.

It is an amenable number.

201212001211205 is a deficient number, since it is larger than the sum of its proper divisors (44263227975739).

201212001211205 is a wasteful number, since it uses less digits than its factorization.

201212001211205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168169036.

The product of its (nonzero) digits is 160, while the sum is 20.

Adding to 201212001211205 its reverse (502112100212102), we get a palindrome (703324101423307).

The spelling of 201212001211205 in words is "two hundred one trillion, two hundred twelve billion, one million, two hundred eleven thousand, two hundred five".