12202131222 has 64 divisors (see below), whose sum is σ = 27673272000. Its totient is φ = 3984609024.

The previous prime is 12202131127. The next prime is 12202131229. The reversal of 12202131222 is 22213120221.

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 = 12202131195 and 12202131204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202131229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 512208 + ... + 535500.

It is an arithmetic number, because the mean of its divisors is an integer number (432394875).

Almost surely, 2^12202131222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12202131222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13836636000).

12202131222 is an abundant number, since it is smaller than the sum of its proper divisors (15471140778).

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

12202131222 is a wasteful number, since it uses less digits than its factorization.

12202131222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23502 (or 23496 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12202131222 its reverse (22213120221), we get a palindrome (34415251443).

The spelling of 12202131222 in words is "twelve billion, two hundred two million, one hundred thirty-one thousand, two hundred twenty-two".