1220524002530 has 64 divisors (see below), whose sum is σ = 2599004586240. Its totient is φ = 403781462784.

The previous prime is 1220524002463. The next prime is 1220524002557. The reversal of 1220524002530 is 352004250221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220524002530.

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 31 ways as a sum of consecutive naturals, for example, 3053669 + ... + 3430151.

It is an arithmetic number, because the mean of its divisors is an integer number (40609446660).

Almost surely, 2^{1220524002530} is an apocalyptic number.

1220524002530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220524002530 is an abundant number, since it is smaller than the sum of its proper divisors (1378480583710).

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

1220524002530 is a wasteful number, since it uses less digits than its factorization.

1220524002530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378123.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 1220524002530 its reverse (352004250221), we get a palindrome (1572528252751).

The spelling of 1220524002530 in words is "one trillion, two hundred twenty billion, five hundred twenty-four million, two thousand, five hundred thirty".