1320022022221 has 16 divisors (see below), whose sum is σ = 1512328942080. Its totient is φ = 1128651476400.

The previous prime is 1320022022213. The next prime is 1320022022237. The reversal of 1320022022221 is 1222202200231.

It is not a de Polignac number, because 1320022022221 - 2³ = 1320022022213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320022022201) 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, 4712130 + ... + 4984396.

It is an arithmetic number, because the mean of its divisors is an integer number (94520558880).

Almost surely, 2^{1320022022221} is an apocalyptic number.

It is an amenable number.

1320022022221 is a deficient number, since it is larger than the sum of its proper divisors (192306919859).

1320022022221 is a wasteful number, since it uses less digits than its factorization.

1320022022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273984.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1320022022221 its reverse (1222202200231), we get a palindrome (2542224222452).

The spelling of 1320022022221 in words is "one trillion, three hundred twenty billion, twenty-two million, twenty-two thousand, two hundred twenty-one".