12212030440 has 64 divisors (see below), whose sum is σ = 27729192960. Its totient is φ = 4840093440.

The previous prime is 12212030431. The next prime is 12212030447. The reversal of 12212030440 is 4403021221.

It is not an unprimeable number, because it can be changed into a prime (12212030447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7532830 + ... + 7534450.

It is an arithmetic number, because the mean of its divisors is an integer number (433268640).

Almost surely, 2^12212030440 is an apocalyptic number.

12212030440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12212030440 is an abundant number, since it is smaller than the sum of its proper divisors (15517162520).

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

12212030440 is a wasteful number, since it uses less digits than its factorization.

12212030440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242 (or 3238 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12212030440 its reverse (4403021221), we get a palindrome (16615051661).

The spelling of 12212030440 in words is "twelve billion, two hundred twelve million, thirty thousand, four hundred forty".