1330200121221 has 6 divisors (see below), whose sum is σ = 1921400175110. Its totient is φ = 886800080808.

The previous prime is 1330200121193. The next prime is 1330200121279. The reversal of 1330200121221 is 1221210020331.

1330200121221 is a `hidden beast` number, since 1 + 330 + 200 + 12 + 122 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1242812484225 + 87387636996 = 1114815^2 + 295614^2 .

It is not a de Polignac number, because 1330200121221 - 2⁶ = 1330200121157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1330200121194 and 1330200121203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1330200121291) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73900006726 + ... + 73900006743.

Almost surely, 2^{1330200121221} is an apocalyptic number.

It is an amenable number.

1330200121221 is a deficient number, since it is larger than the sum of its proper divisors (591200053889).

1330200121221 is a wasteful number, since it uses less digits than its factorization.

1330200121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147800013475 (or 147800013472 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1330200121221 its reverse (1221210020331), we get a palindrome (2551410141552).

The spelling of 1330200121221 in words is "one trillion, three hundred thirty billion, two hundred million, one hundred twenty-one thousand, two hundred twenty-one".