201201120012 has 48 divisors (see below), whose sum is σ = 470993292000. Its totient is φ = 66849669120.

The previous prime is 201201120011. The next prime is 201201120013. The reversal of 201201120012 is 210021102102.

It is an interprime number because it is at equal distance from previous prime (201201120011) and next prime (201201120013).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 201201120012.

It is not an unprimeable number, because it can be changed into a prime (201201120011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4786864 + ... + 4828712.

It is an arithmetic number, because the mean of its divisors is an integer number (9812360250).

Almost surely, 2^201201120012 is an apocalyptic number.

It is an amenable number.

201201120012 is an abundant number, since it is smaller than the sum of its proper divisors (269792171988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201201120012 is a wasteful number, since it uses less digits than its factorization.

201201120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43146 (or 43144 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201201120012 its reverse (210021102102), we get a palindrome (411222222114).

The spelling of 201201120012 in words is "two hundred one billion, two hundred one million, one hundred twenty thousand, twelve".