1220032430240 has 192 divisors, whose sum is σ = 3138630840576. Its totient is φ = 445461921792.

The previous prime is 1220032430213. The next prime is 1220032430273. The reversal of 1220032430240 is 420342300221.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 420264629 + ... + 420267531.

It is an arithmetic number, because the mean of its divisors is an integer number (16347035628).

Almost surely, 2^{1220032430240} is an apocalyptic number.

1220032430240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220032430240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569315420288).

1220032430240 is an abundant number, since it is smaller than the sum of its proper divisors (1918598410336).

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

1220032430240 is a wasteful number, since it uses less digits than its factorization.

1220032430240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111 (or 5103 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 1220032430240 its reverse (420342300221), we get a palindrome (1640374730461).

The spelling of 1220032430240 in words is "one trillion, two hundred twenty billion, thirty-two million, four hundred thirty thousand, two hundred forty".