1220040515232 has 144 divisors (see below), whose sum is σ = 4325598268992. Its totient is φ = 316893634560.

The previous prime is 1220040515219. The next prime is 1220040515251. The reversal of 1220040515232 is 2325150400221.

1220040515232 is a `hidden beast` number, since 1 + 2 + 20 + 0 + 405 + 1 + 5 + 232 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 1220040515196 and 1220040515205.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27485953 + ... + 27530304.

It is an arithmetic number, because the mean of its divisors is an integer number (30038876868).

Almost surely, 2^{1220040515232} is an apocalyptic number.

1220040515232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220040515232 is an abundant number, since it is smaller than the sum of its proper divisors (3105557753760).

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

1220040515232 is a wasteful number, since it uses less digits than its factorization.

1220040515232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55016291 (or 55016280 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 1220040515232 its reverse (2325150400221), we get a palindrome (3545190915453).

The spelling of 1220040515232 in words is "one trillion, two hundred twenty billion, forty million, five hundred fifteen thousand, two hundred thirty-two".