201100211212112 has 40 divisors (see below), whose sum is σ = 392756660346600. Its totient is φ = 99746242641920.

The previous prime is 201100211212051. The next prime is 201100211212139. The reversal of 201100211212112 is 211212112001102.

It can be written as a sum of positive squares in 4 ways, for example, as 55787215799056 + 145312995413056 = 7469084^2 + 12054584^2 .

It is a congruent number.

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, 79661189 + ... + 82146852.

It is an arithmetic number, because the mean of its divisors is an integer number (9818916508665).

Almost surely, 2^{201100211212112} is an apocalyptic number.

It is an amenable number.

201100211212112 is a deficient number, since it is larger than the sum of its proper divisors (191656449134488).

201100211212112 is a wasteful number, since it uses less digits than its factorization.

201100211212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161808671 (or 161808665 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 201100211212112 its reverse (211212112001102), we get a palindrome (412312323213214).

The spelling of 201100211212112 in words is "two hundred one trillion, one hundred billion, two hundred eleven million, two hundred twelve thousand, one hundred twelve".