212022101201021 has 2 divisors, whose sum is σ = 212022101201022. Its totient is φ = 212022101201020.

The previous prime is 212022101201003. The next prime is 212022101201047. The reversal of 212022101201021 is 120102101220212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151112661398521 + 60909439802500 = 12292789^2 + 7804450^2 .

It is a cyclic number.

It is not a de Polignac number, because 212022101201021 - 2⁶ = 212022101200957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212024101201021) 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, 106011050600510 + 106011050600511.

It is an arithmetic number, because the mean of its divisors is an integer number (106011050600511).

Almost surely, 2^{212022101201021} is an apocalyptic number.

It is an amenable number.

212022101201021 is a deficient number, since it is larger than the sum of its proper divisors (1).

212022101201021 is an equidigital number, since it uses as much as digits as its factorization.

212022101201021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212022101201021 its reverse (120102101220212), we get a palindrome (332124202421233).

The spelling of 212022101201021 in words is "two hundred twelve trillion, twenty-two billion, one hundred one million, two hundred one thousand, twenty-one".