1220321312470 has 16 divisors (see below), whose sum is σ = 2365545929040. Its totient is φ = 450580176864.

The previous prime is 1220321312423. The next prime is 1220321312521. The reversal of 1220321312470 is 742131230221.

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, 4693543380 + ... + 4693543639.

It is an arithmetic number, because the mean of its divisors is an integer number (147846620565).

Almost surely, 2^{1220321312470} is an apocalyptic number.

1220321312470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1220321312470 is a deficient number, since it is larger than the sum of its proper divisors (1145224616570).

1220321312470 is a wasteful number, since it uses less digits than its factorization.

1220321312470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9387087039.

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 1220321312470 its reverse (742131230221), we get a palindrome (1962452542691).

The spelling of 1220321312470 in words is "one trillion, two hundred twenty billion, three hundred twenty-one million, three hundred twelve thousand, four hundred seventy".