201211000100012 has 24 divisors (see below), whose sum is σ = 402436167090720. Its totient is φ = 86230249994880.

The previous prime is 201211000099927. The next prime is 201211000100029. The reversal of 201211000100012 is 210001000112102.

It is a super-2 number, since 2×201211000100012² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201211000099966 and 201211000100002.

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, 125680439 + ... + 127271342.

It is an arithmetic number, because the mean of its divisors is an integer number (16768173628780).

Almost surely, 2^{201211000100012} is an apocalyptic number.

It is an amenable number.

201211000100012 is an abundant number, since it is smaller than the sum of its proper divisors (201225166990708).

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

201211000100012 is a wasteful number, since it uses less digits than its factorization.

201211000100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252980201 (or 252980199 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 201211000100012 its reverse (210001000112102), we get a palindrome (411212000212114).

The spelling of 201211000100012 in words is "two hundred one trillion, two hundred eleven billion, one hundred thousand, twelve".