12001010022 has 48 divisors (see below), whose sum is σ = 27557161632. Its totient is φ = 3761544960.

The previous prime is 12001009963. The next prime is 12001010029. The reversal of 12001010022 is 22001010021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 12001009986 and 12001010013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001010029) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 324247 + ... + 359357.

It is an arithmetic number, because the mean of its divisors is an integer number (574107534).

Almost surely, 2^12001010022 is an apocalyptic number.

12001010022 is an abundant number, since it is smaller than the sum of its proper divisors (15556151610).

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

12001010022 is a wasteful number, since it uses less digits than its factorization.

12001010022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36253 (or 36250 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12001010022 its reverse (22001010021), we get a palindrome (34002020043).

Subtracting 12001010022 from its reverse (22001010021), we obtain a palindrome (9999999999).

The spelling of 12001010022 in words is "twelve billion, one million, ten thousand, twenty-two".