201212120020112 has 40 divisors (see below), whose sum is σ = 396662324012472. Its totient is φ = 98851169664000.

The previous prime is 201212120020063. The next prime is 201212120020141. The reversal of 201212120020112 is 211020021212102.

It can be written as a sum of positive squares in 4 ways, for example, as 6888966099856 + 194323153920256 = 2624684^2 + 13939984^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109096139 + ... + 110925162.

Almost surely, 2^{201212120020112} is an apocalyptic number.

It is an amenable number.

201212120020112 is a deficient number, since it is larger than the sum of its proper divisors (195450203992360).

201212120020112 is a wasteful number, since it uses less digits than its factorization.

201212120020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220022307 (or 220022301 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201212120020112 its reverse (211020021212102), we get a palindrome (412232141232214).

The spelling of 201212120020112 in words is "two hundred one trillion, two hundred twelve billion, one hundred twenty million, twenty thousand, one hundred twelve".