12122201000 has 192 divisors, whose sum is σ = 35107188480. Its totient is φ = 3836102400.

The previous prime is 12122200967. The next prime is 12122201029. The reversal of 12122201000 is 10222121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1177877 + ... + 1188123.

It is an arithmetic number, because the mean of its divisors is an integer number (182849940).

Almost surely, 2^12122201000 is an apocalyptic number.

12122201000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12122201000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17553594240).

12122201000 is an abundant number, since it is smaller than the sum of its proper divisors (22984987480).

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

12122201000 is a wasteful number, since it uses less digits than its factorization.

12122201000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10301 (or 10274 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12122201000 its reverse (10222121), we get a palindrome (12132423121).

The spelling of 12122201000 in words is "twelve billion, one hundred twenty-two million, two hundred one thousand".