201101111111212 has 48 divisors (see below), whose sum is σ = 389972417732352. Its totient is φ = 90163023724800.

The previous prime is 201101111111203. The next prime is 201101111111231. The reversal of 201101111111212 is 212111111101102.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360951708 + ... + 361508419.

It is an arithmetic number, because the mean of its divisors is an integer number (8124425369424).

Almost surely, 2^{201101111111212} is an apocalyptic number.

It is an amenable number.

201101111111212 is a deficient number, since it is larger than the sum of its proper divisors (188871306621140).

201101111111212 is a wasteful number, since it uses less digits than its factorization.

201101111111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722460298 (or 722460296 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 201101111111212 its reverse (212111111101102), we get a palindrome (413212222212314).

The spelling of 201101111111212 in words is "two hundred one trillion, one hundred one billion, one hundred eleven million, one hundred eleven thousand, two hundred twelve".