12122122021012 has 24 divisors (see below), whose sum is σ = 22777939316160. Its totient is φ = 5624182542720.

The previous prime is 12122122021001. The next prime is 12122122021033. The reversal of 12122122021012 is 21012022122121.

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, 1255393062 + ... + 1255402717.

It is an arithmetic number, because the mean of its divisors is an integer number (949080804840).

Almost surely, 2^{12122122021012} is an apocalyptic number.

It is an amenable number.

12122122021012 is a deficient number, since it is larger than the sum of its proper divisors (10655817295148).

12122122021012 is a wasteful number, since it uses less digits than its factorization.

12122122021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510795871 (or 2510795869 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12122122021012 its reverse (21012022122121), we get a palindrome (33134144143133).

The spelling of 12122122021012 in words is "twelve trillion, one hundred twenty-two billion, one hundred twenty-two million, twenty-one thousand, twelve".