1201324022440 has 32 divisors (see below), whose sum is σ = 2703709721160. Its totient is φ = 480399712000.

The previous prime is 1201324022429. The next prime is 1201324022443. The reversal of 1201324022440 is 442204231021.

It can be written as a sum of positive squares in 4 ways, for example, as 1119359768004 + 81964254436 = 1057998^2 + 286294^2 .

It is not an unprimeable number, because it can be changed into a prime (1201324022443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3909391 + ... + 4205470.

Almost surely, 2^{1201324022440} is an apocalyptic number.

1201324022440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201324022440 is an abundant number, since it is smaller than the sum of its proper divisors (1502385698720).

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

1201324022440 is a wasteful number, since it uses less digits than its factorization.

1201324022440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8118573 (or 8118569 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 1201324022440 its reverse (442204231021), we get a palindrome (1643528253461).

The spelling of 1201324022440 in words is "one trillion, two hundred one billion, three hundred twenty-four million, twenty-two thousand, four hundred forty".