201100220211212 has 24 divisors (see below), whose sum is σ = 402201378453504. Its totient is φ = 86185607655312.

The previous prime is 201100220211203. The next prime is 201100220211311. The reversal of 201100220211212 is 212112022001102.

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, 4174613 + ... + 20484819.

It is an arithmetic number, because the mean of its divisors is an integer number (16758390768896).

Almost surely, 2^{201100220211212} is an apocalyptic number.

It is an amenable number.

201100220211212 is an abundant number, since it is smaller than the sum of its proper divisors (201101158242292).

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

201100220211212 is a wasteful number, since it uses less digits than its factorization.

201100220211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16750565 (or 16750563 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201100220211212 its reverse (212112022001102), we get a palindrome (413212242212314).

The spelling of 201100220211212 in words is "two hundred one trillion, one hundred billion, two hundred twenty million, two hundred eleven thousand, two hundred twelve".