20212211020321 has 2 divisors, whose sum is σ = 20212211020322. Its totient is φ = 20212211020320.

The previous prime is 20212211020301. The next prime is 20212211020333. The reversal of 20212211020321 is 12302011221202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20212037808400 + 173211921 = 4495780^2 + 13161^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212211020321 - 2²¹ = 20212208923169 is a prime.

It is not a weakly prime, because it can be changed into another prime (20212211020301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10106105510160 + 10106105510161.

It is an arithmetic number, because the mean of its divisors is an integer number (10106105510161).

Almost surely, 2^{20212211020321} is an apocalyptic number.

It is an amenable number.

20212211020321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20212211020321 is an equidigital number, since it uses as much as digits as its factorization.

20212211020321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20212211020321 its reverse (12302011221202), we get a palindrome (32514222241523).

The spelling of 20212211020321 in words is "twenty trillion, two hundred twelve billion, two hundred eleven million, twenty thousand, three hundred twenty-one".