1330021122221 has 24 divisors (see below), whose sum is σ = 1471450458240. Its totient is φ = 1201243651520.

The previous prime is 1330021122211. The next prime is 1330021122233. The reversal of 1330021122221 is 1222211200331.

It is a de Polignac number, because none of the positive numbers 2^k-1330021122221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1330021122193 and 1330021122202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330021122211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23862041 + ... + 23917713.

It is an arithmetic number, because the mean of its divisors is an integer number (61310435760).

Almost surely, 2^{1330021122221} is an apocalyptic number.

1330021122221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1330021122221 is a deficient number, since it is larger than the sum of its proper divisors (141429336019).

1330021122221 is a wasteful number, since it uses less digits than its factorization.

1330021122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56977 (or 56966 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1330021122221 its reverse (1222211200331), we get a palindrome (2552232322552).

The spelling of 1330021122221 in words is "one trillion, three hundred thirty billion, twenty-one million, one hundred twenty-two thousand, two hundred twenty-one".