1020221210213 has 2 divisors, whose sum is σ = 1020221210214. Its totient is φ = 1020221210212.

The previous prime is 1020221210209. The next prime is 1020221210219. The reversal of 1020221210213 is 3120121220201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 565192714849 + 455028495364 = 751793^2 + 674558^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020221210213 - 2² = 1020221210209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020221210191 and 1020221210200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020221210219) 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 as a sum of consecutive naturals, namely, 510110605106 + 510110605107.

It is an arithmetic number, because the mean of its divisors is an integer number (510110605107).

Almost surely, 2^{1020221210213} is an apocalyptic number.

It is an amenable number.

1020221210213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020221210213 is an equidigital number, since it uses as much as digits as its factorization.

1020221210213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1020221210213 its reverse (3120121220201), we get a palindrome (4140342430414).

The spelling of 1020221210213 in words is "one trillion, twenty billion, two hundred twenty-one million, two hundred ten thousand, two hundred thirteen".