1220413132240 has 40 divisors (see below), whose sum is σ = 2837547456768. Its totient is φ = 488150298240.

The previous prime is 1220413132219. The next prime is 1220413132271. The reversal of 1220413132240 is 422313140221.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2608869 + ... + 3040891.

Almost surely, 2^{1220413132240} is an apocalyptic number.

1220413132240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220413132240 is an abundant number, since it is smaller than the sum of its proper divisors (1617134324528).

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

1220413132240 is a wasteful number, since it uses less digits than its factorization.

1220413132240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467347 (or 467341 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1220413132240 its reverse (422313140221), we get a palindrome (1642726272461).

The spelling of 1220413132240 in words is "one trillion, two hundred twenty billion, four hundred thirteen million, one hundred thirty-two thousand, two hundred forty".