12001210022022 has 256 divisors, whose sum is σ = 28719441838080. Its totient is φ = 3309910387200.

The previous prime is 12001210021921. The next prime is 12001210022069. The reversal of 12001210022022 is 22022001210021.

It is a junction number, because it is equal to n+sod(n) for n = 12001210021992 and 12001210022010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 467998333 + ... + 468023975.

It is an arithmetic number, because the mean of its divisors is an integer number (112185319680).

Almost surely, 2^{12001210022022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12001210022022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14359720919040).

12001210022022 is an abundant number, since it is smaller than the sum of its proper divisors (16718231816058).

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

12001210022022 is a wasteful number, since it uses less digits than its factorization.

12001210022022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25939.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12001210022022 its reverse (22022001210021), we get a palindrome (34023211232043).

The spelling of 12001210022022 in words is "twelve trillion, one billion, two hundred ten million, twenty-two thousand, twenty-two".