1220313321224 has 32 divisors (see below), whose sum is σ = 2301027847200. Its totient is φ = 606706364160.

The previous prime is 1220313321223. The next prime is 1220313321251. The reversal of 1220313321224 is 4221233130221.

It is a junction number, because it is equal to n+sod(n) for n = 1220313321193 and 1220313321202.

It is not an unprimeable number, because it can be changed into a prime (1220313321223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40196819 + ... + 40227165.

It is an arithmetic number, because the mean of its divisors is an integer number (71907120225).

Almost surely, 2^{1220313321224} is an apocalyptic number.

It is an amenable number.

1220313321224 is a deficient number, since it is larger than the sum of its proper divisors (1080714525976).

1220313321224 is a wasteful number, since it uses less digits than its factorization.

1220313321224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58613 (or 58609 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1220313321224 its reverse (4221233130221), we get a palindrome (5441546451445).

The spelling of 1220313321224 in words is "one trillion, two hundred twenty billion, three hundred thirteen million, three hundred twenty-one thousand, two hundred twenty-four".