12122202121112 has 8 divisors (see below), whose sum is σ = 22729128977100. Its totient is φ = 6061101060552.

The previous prime is 12122202121111. The next prime is 12122202121121. The reversal of 12122202121112 is 21112120222121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×12122202121112³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122202121111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 757637632562 + ... + 757637632577.

Almost surely, 2^{12122202121112} is an apocalyptic number.

It is an amenable number.

12122202121112 is a deficient number, since it is larger than the sum of its proper divisors (10606926855988).

12122202121112 is a wasteful number, since it uses less digits than its factorization.

12122202121112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515275265145 (or 1515275265141 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12122202121112 its reverse (21112120222121), we get a palindrome (33234322343233).

The spelling of 12122202121112 in words is "twelve trillion, one hundred twenty-two billion, two hundred two million, one hundred twenty-one thousand, one hundred twelve".