212222020201 has 2 divisors, whose sum is σ = 212222020202. Its totient is φ = 212222020200.

The previous prime is 212222020177. The next prime is 212222020229. The reversal of 212222020201 is 102020222212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211346156176 + 875864025 = 459724^2 + 29595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212222020201 is a prime.

It is not a weakly prime, because it can be changed into another prime (212222020261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106111010100 + 106111010101.

It is an arithmetic number, because the mean of its divisors is an integer number (106111010101).

Almost surely, 2^212222020201 is an apocalyptic number.

It is an amenable number.

212222020201 is a deficient number, since it is larger than the sum of its proper divisors (1).

212222020201 is an equidigital number, since it uses as much as digits as its factorization.

212222020201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 212222020201 its reverse (102020222212), we get a palindrome (314242242413).

The spelling of 212222020201 in words is "two hundred twelve billion, two hundred twenty-two million, twenty thousand, two hundred one".