1320000221011 has 16 divisors (see below), whose sum is σ = 1383961033728. Its totient is φ = 1256599458400.

The previous prime is 1320000220999. The next prime is 1320000221119. The reversal of 1320000221011 is 1101220000231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320000221011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320000220982 and 1320000221000.

It is not an unprimeable number, because it can be changed into a prime (1320000221411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4485381 + ... + 4770601.

It is an arithmetic number, because the mean of its divisors is an integer number (86497564608).

Almost surely, 2^{1320000221011} is an apocalyptic number.

1320000221011 is a deficient number, since it is larger than the sum of its proper divisors (63960812717).

1320000221011 is a wasteful number, since it uses less digits than its factorization.

1320000221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286202.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 1320000221011 its reverse (1101220000231), we get a palindrome (2421220221242).

The spelling of 1320000221011 in words is "one trillion, three hundred twenty billion, two hundred twenty-one thousand, eleven".