2001201201212 has 6 divisors (see below), whose sum is σ = 3502102102128. Its totient is φ = 1000600600604.

The previous prime is 2001201201211. The next prime is 2001201201227. The reversal of 2001201201212 is 2121021021002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001201201211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250150150148 + ... + 250150150155.

It is an arithmetic number, because the mean of its divisors is an integer number (583683683688).

Almost surely, 2^{2001201201212} is an apocalyptic number.

It is an amenable number.

2001201201212 is a deficient number, since it is larger than the sum of its proper divisors (1500900900916).

2001201201212 is a wasteful number, since it uses less digits than its factorization.

2001201201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500300300307 (or 500300300305 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2001201201212 its reverse (2121021021002), we get a palindrome (4122222222214).

The spelling of 2001201201212 in words is "two trillion, one billion, two hundred one million, two hundred one thousand, two hundred twelve".