12122201012022 has 96 divisors (see below), whose sum is σ = 29024459006400. Its totient is φ = 3636993761280.

The previous prime is 12122201012003. The next prime is 12122201012027. The reversal of 12122201012022 is 22021010222121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12122201011986 and 12122201012004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122201012027) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37004604 + ... + 37330752.

It is an arithmetic number, because the mean of its divisors is an integer number (302338114650).

Almost surely, 2^{12122201012022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12122201012022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14512229503200).

12122201012022 is an abundant number, since it is smaller than the sum of its proper divisors (16902257994378).

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

12122201012022 is a wasteful number, since it uses less digits than its factorization.

12122201012022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331478 (or 331475 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12122201012022 its reverse (22021010222121), we get a palindrome (34143211234143).

The spelling of 12122201012022 in words is "twelve trillion, one hundred twenty-two billion, two hundred one million, twelve thousand, twenty-two".