212020223201 has 2 divisors, whose sum is σ = 212020223202. Its totient is φ = 212020223200.

The previous prime is 212020223197. The next prime is 212020223221. The reversal of 212020223201 is 102322020212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179898981025 + 32121242176 = 424145^2 + 179224^2 .

It is a cyclic number.

It is not a de Polignac number, because 212020223201 - 2² = 212020223197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212020223201.

It is not a weakly prime, because it can be changed into another prime (212020223221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010111600 + 106010111601.

It is an arithmetic number, because the mean of its divisors is an integer number (106010111601).

Almost surely, 2^212020223201 is an apocalyptic number.

It is an amenable number.

212020223201 is a deficient number, since it is larger than the sum of its proper divisors (1).

212020223201 is an equidigital number, since it uses as much as digits as its factorization.

212020223201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 212020223201 its reverse (102322020212), we get a palindrome (314342243413).

The spelling of 212020223201 in words is "two hundred twelve billion, twenty million, two hundred twenty-three thousand, two hundred one".