201122001205 has 32 divisors (see below), whose sum is σ = 257335999488. Its totient is φ = 150546739200.

The previous prime is 201122001193. The next prime is 201122001229. The reversal of 201122001205 is 502100221102.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-201122001205 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 31 ways as a sum of consecutive naturals, for example, 11238865 + ... + 11256745.

It is an arithmetic number, because the mean of its divisors is an integer number (8041749984).

Almost surely, 2^201122001205 is an apocalyptic number.

It is an amenable number.

201122001205 is a deficient number, since it is larger than the sum of its proper divisors (56213998283).

201122001205 is a wasteful number, since it uses less digits than its factorization.

201122001205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20037.

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

Adding to 201122001205 its reverse (502100221102), we get a palindrome (703222222307).

The spelling of 201122001205 in words is "two hundred one billion, one hundred twenty-two million, one thousand, two hundred five".