1220041351524 has 48 divisors (see below), whose sum is σ = 2876463834048. Its totient is φ = 402438524928.

The previous prime is 1220041351513. The next prime is 1220041351549. The reversal of 1220041351524 is 4251531400221.

It is a junction number, because it is equal to n+sod(n) for n = 1220041351491 and 1220041351500.

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 15 ways as a sum of consecutive naturals, for example, 10128619 + ... + 10248365.

It is an arithmetic number, because the mean of its divisors is an integer number (59926329876).

Almost surely, 2^{1220041351524} is an apocalyptic number.

It is an amenable number.

1220041351524 is an abundant number, since it is smaller than the sum of its proper divisors (1656422482524).

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

1220041351524 is a wasteful number, since it uses less digits than its factorization.

1220041351524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128604 (or 128602 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 1220041351524 its reverse (4251531400221), we get a palindrome (5471572751745).

The spelling of 1220041351524 in words is "one trillion, two hundred twenty billion, forty-one million, three hundred fifty-one thousand, five hundred twenty-four".