201110211210205 has 32 divisors (see below), whose sum is σ = 268241543336448. Its totient is φ = 143500917580800.

The previous prime is 201110211210197. The next prime is 201110211210211. The reversal of 201110211210205 is 502012112011102.

It is not a de Polignac number, because 201110211210205 - 2³ = 201110211210197 is a prime.

It is a super-2 number, since 2×201110211210205² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 369819612 + ... + 370363018.

It is an arithmetic number, because the mean of its divisors is an integer number (8382548229264).

Almost surely, 2^{201110211210205} is an apocalyptic number.

It is an amenable number.

201110211210205 is a deficient number, since it is larger than the sum of its proper divisors (67131332126243).

201110211210205 is a wasteful number, since it uses less digits than its factorization.

201110211210205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670437.

The product of its (nonzero) digits is 80, while the sum is 19.

Adding to 201110211210205 its reverse (502012112011102), we get a palindrome (703122323221307).

The spelling of 201110211210205 in words is "two hundred one trillion, one hundred ten billion, two hundred eleven million, two hundred ten thousand, two hundred five".