1021201022213 has 2 divisors, whose sum is σ = 1021201022214. Its totient is φ = 1021201022212.

The previous prime is 1021201022099. The next prime is 1021201022243. The reversal of 1021201022213 is 3122201021201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 643022760769 + 378178261444 = 801887^2 + 614962^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021201022213 - 2¹⁴ = 1021201005829 is a prime.

It is a super-2 number, since 2×1021201022213² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021201022191 and 1021201022200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021201022243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510600511106 + 510600511107.

It is an arithmetic number, because the mean of its divisors is an integer number (510600511107).

Almost surely, 2^{1021201022213} is an apocalyptic number.

It is an amenable number.

1021201022213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021201022213 is an equidigital number, since it uses as much as digits as its factorization.

1021201022213 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 1021201022213 its reverse (3122201021201), we get a palindrome (4143402043414).

The spelling of 1021201022213 in words is "one trillion, twenty-one billion, two hundred one million, twenty-two thousand, two hundred thirteen".