12202042440 has 128 divisors (see below), whose sum is σ = 44037504000. Its totient is φ = 2642243328.

The previous prime is 12202042439. The next prime is 12202042441. The reversal of 12202042440 is 4424020221.

It is an interprime number because it is at equal distance from previous prime (12202042439) and next prime (12202042441).

It is a super-2 number, since 2×12202042440² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (12202042441) 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, 366310 + ... + 398229.

It is an arithmetic number, because the mean of its divisors is an integer number (344043000).

Almost surely, 2^12202042440 is an apocalyptic number.

12202042440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12202042440 is an abundant number, since it is smaller than the sum of its proper divisors (31835461560).

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

12202042440 is a wasteful number, since it uses less digits than its factorization.

12202042440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764579 (or 764575 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 12202042440 its reverse (4424020221), we get a palindrome (16626062661).

The spelling of 12202042440 in words is "twelve billion, two hundred two million, forty-two thousand, four hundred forty".