1012022000221 has 2 divisors, whose sum is σ = 1012022000222. Its totient is φ = 1012022000220.

The previous prime is 1012022000153. The next prime is 1012022000303. The reversal of 1012022000221 is 1220002202101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 553610402500 + 458411597721 = 744050^2 + 677061^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012022000221 - 2¹⁷ = 1012021869149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012022009221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506011000110 + 506011000111.

It is an arithmetic number, because the mean of its divisors is an integer number (506011000111).

Almost surely, 2^{1012022000221} is an apocalyptic number.

It is an amenable number.

1012022000221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012022000221 is an equidigital number, since it uses as much as digits as its factorization.

1012022000221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1012022000221 its reverse (1220002202101), we get a palindrome (2232024202322).

The spelling of 1012022000221 in words is "one trillion, twelve billion, twenty-two million, two hundred twenty-one", and thus it is an aban number.