1303220221012 has 24 divisors (see below), whose sum is σ = 2400739417440. Its totient is φ = 617296690080.

The previous prime is 1303220220941. The next prime is 1303220221021. The reversal of 1303220221012 is 2101220223031.

It is a super-2 number, since 2×1303220221012² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 2553687 + ... + 3021217.

It is an arithmetic number, because the mean of its divisors is an integer number (100030809060).

Almost surely, 2^{1303220221012} is an apocalyptic number.

It is an amenable number.

1303220221012 is a deficient number, since it is larger than the sum of its proper divisors (1097519196428).

1303220221012 is a wasteful number, since it uses less digits than its factorization.

1303220221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504231 (or 504229 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1303220221012 its reverse (2101220223031), we get a palindrome (3404440444043).

The spelling of 1303220221012 in words is "one trillion, three hundred three billion, two hundred twenty million, two hundred twenty-one thousand, twelve".