12220213332 has 24 divisors (see below), whose sum is σ = 29284476256. Its totient is φ = 3963312288.

The previous prime is 12220213331. The next prime is 12220213393. The reversal of 12220213332 is 23331202221.

It is a happy number.

It is a super-2 number, since 2×12220213332² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12220213299 and 12220213308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220213331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13761058 + ... + 13761945.

Almost surely, 2^12220213332 is an apocalyptic number.

12220213332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12220213332 is an abundant number, since it is smaller than the sum of its proper divisors (17064262924).

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

12220213332 is a wasteful number, since it uses less digits than its factorization.

12220213332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27523047 (or 27523045 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12220213332 its reverse (23331202221), we get a palindrome (35551415553).

The spelling of 12220213332 in words is "twelve billion, two hundred twenty million, two hundred thirteen thousand, three hundred thirty-two".