1220530420502 has 16 divisors (see below), whose sum is σ = 1833454151424. Its totient is φ = 609379680000.

The previous prime is 1220530420481. The next prime is 1220530420567. The reversal of 1220530420502 is 2050240350221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3668102 + ... + 3986982.

It is an arithmetic number, because the mean of its divisors is an integer number (114590884464).

Almost surely, 2^{1220530420502} is an apocalyptic number.

1220530420502 is a deficient number, since it is larger than the sum of its proper divisors (612923730922).

1220530420502 is a wasteful number, since it uses less digits than its factorization.

1220530420502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321655.

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

Adding to 1220530420502 its reverse (2050240350221), we get a palindrome (3270770770723).

The spelling of 1220530420502 in words is "one trillion, two hundred twenty billion, five hundred thirty million, four hundred twenty thousand, five hundred two".