202120221211043 has 2 divisors, whose sum is σ = 202120221211044. Its totient is φ = 202120221211042.

The previous prime is 202120221211033. The next prime is 202120221211187. The reversal of 202120221211043 is 340112122021202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202120221211043 - 2²⁶ = 202120154102179 is a prime.

It is not a weakly prime, because it can be changed into another prime (202120221211033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101060110605521 + 101060110605522.

It is an arithmetic number, because the mean of its divisors is an integer number (101060110605522).

Almost surely, 2^{202120221211043} is an apocalyptic number.

202120221211043 is a deficient number, since it is larger than the sum of its proper divisors (1).

202120221211043 is an equidigital number, since it uses as much as digits as its factorization.

202120221211043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 202120221211043 its reverse (340112122021202), we get a palindrome (542232343232245).

The spelling of 202120221211043 in words is "two hundred two trillion, one hundred twenty billion, two hundred twenty-one million, two hundred eleven thousand, forty-three".