1220040024140 has 96 divisors (see below), whose sum is σ = 3030377011200. Its totient is φ = 403700371200.

The previous prime is 1220040024107. The next prime is 1220040024157. The reversal of 1220040024140 is 414200400221.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9481151 + ... + 9608969.

It is an arithmetic number, because the mean of its divisors is an integer number (31566427200).

Almost surely, 2^{1220040024140} is an apocalyptic number.

1220040024140 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 1220040024140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1515188505600).

1220040024140 is an abundant number, since it is smaller than the sum of its proper divisors (1810336987060).

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

1220040024140 is a wasteful number, since it uses less digits than its factorization.

1220040024140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130215 (or 130213 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 1220040024140 its reverse (414200400221), we get a palindrome (1634240424361).

The spelling of 1220040024140 in words is "one trillion, two hundred twenty billion, forty million, twenty-four thousand, one hundred forty".