1040420221320 has 64 divisors (see below), whose sum is σ = 3130522686720. Its totient is φ = 276622101504.

The previous prime is 1040420221297. The next prime is 1040420221363. The reversal of 1040420221320 is 231220240401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12823312 + ... + 12904191.

It is an arithmetic number, because the mean of its divisors is an integer number (48914416980).

Almost surely, 2^{1040420221320} is an apocalyptic number.

1040420221320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1040420221320 is an abundant number, since it is smaller than the sum of its proper divisors (2090102465400).

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

1040420221320 is a wasteful number, since it uses less digits than its factorization.

1040420221320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25727854 (or 25727850 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 1040420221320 its reverse (231220240401), we get a palindrome (1271640461721).

The spelling of 1040420221320 in words is "one trillion, forty billion, four hundred twenty million, two hundred twenty-one thousand, three hundred twenty".