201220043 has 2 divisors, whose sum is σ = 201220044. Its totient is φ = 201220042.

The previous prime is 201219917. The next prime is 201220057. The reversal of 201220043 is 340022102.

It is an a-pointer prime, because the next prime (201220057) can be obtained adding 201220043 to its sum of digits (14).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201220043 - 2¹⁸ = 200957899 is a prime.

It is not a weakly prime, because it can be changed into another prime (201220073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100610021 + 100610022.

It is an arithmetic number, because the mean of its divisors is an integer number (100610022).

Almost surely, 2^201220043 is an apocalyptic number.

201220043 is a deficient number, since it is larger than the sum of its proper divisors (1).

201220043 is an equidigital number, since it uses as much as digits as its factorization.

201220043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 201220043 is about 14185.2050743019. The cubic root of 201220043 is about 585.9902802536.

Adding to 201220043 its reverse (340022102), we get a palindrome (541242145).

The spelling of 201220043 in words is "two hundred one million, two hundred twenty thousand, forty-three".