201102212111212 has 24 divisors (see below), whose sum is σ = 354758164936560. Its totient is φ = 99743814965760.

The previous prime is 201102212111167. The next prime is 201102212111239. The reversal of 201102212111212 is 212111212201102.

It is a happy number.

It is a super-2 number, since 2×201102212111212² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201102212111212.

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, 134072262 + ... + 135563917.

It is an arithmetic number, because the mean of its divisors is an integer number (14781590205690).

Almost surely, 2^{201102212111212} is an apocalyptic number.

It is an amenable number.

201102212111212 is a deficient number, since it is larger than the sum of its proper divisors (153655952825348).

201102212111212 is a wasteful number, since it uses less digits than its factorization.

201102212111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269637681 (or 269637679 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 201102212111212 its reverse (212111212201102), we get a palindrome (413213424312314).

It can be divided in two parts, 201102 and 212111212, that multiplied together give a palindrome (42655988955624).

The spelling of 201102212111212 in words is "two hundred one trillion, one hundred two billion, two hundred twelve million, one hundred eleven thousand, two hundred twelve".