1321402220330 has 8 divisors (see below), whose sum is σ = 2378523996612. Its totient is φ = 528560888128.

The previous prime is 1321402220317. The next prime is 1321402220399. The reversal of 1321402220330 is 330222041231.

It can be written as a sum of positive squares in 2 ways, for example, as 1109569396321 + 211832824009 = 1053361^2 + 460253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1321402220330² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1321402220296 and 1321402220305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66070111007 + ... + 66070111026.

Almost surely, 2^{1321402220330} is an apocalyptic number.

1321402220330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1321402220330 is a deficient number, since it is larger than the sum of its proper divisors (1057121776282).

1321402220330 is a wasteful number, since it uses less digits than its factorization.

1321402220330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132140222040.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 1321402220330 its reverse (330222041231), we get a palindrome (1651624261561).

The spelling of 1321402220330 in words is "one trillion, three hundred twenty-one billion, four hundred two million, two hundred twenty thousand, three hundred thirty".