12210030440 has 32 divisors (see below), whose sum is σ = 27498557160. Its totient is φ = 4879392000.

The previous prime is 12210030433. The next prime is 12210030467. The reversal of 12210030440 is 4403001221.

It can be written as a sum of positive squares in 4 ways, for example, as 11786576356 + 423454084 = 108566^2 + 20578^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101411 + ... + 186290.

Almost surely, 2^12210030440 is an apocalyptic number.

12210030440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12210030440 is an abundant number, since it is smaller than the sum of its proper divisors (15288526720).

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

12210030440 is a wasteful number, since it uses less digits than its factorization.

12210030440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288773 (or 288769 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12210030440 its reverse (4403001221), we get a palindrome (16613031661).

The spelling of 12210030440 in words is "twelve billion, two hundred ten million, thirty thousand, four hundred forty".