202021022121043 has 2 divisors, whose sum is σ = 202021022121044. Its totient is φ = 202021022121042.

The previous prime is 202021022121019. The next prime is 202021022121047. The reversal of 202021022121043 is 340121220120202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202021022121043 - 2⁹ = 202021022120531 is a prime.

It is not a weakly prime, because it can be changed into another prime (202021022121047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101010511060521 + 101010511060522.

It is an arithmetic number, because the mean of its divisors is an integer number (101010511060522).

Almost surely, 2^{202021022121043} is an apocalyptic number.

202021022121043 is a deficient number, since it is larger than the sum of its proper divisors (1).

202021022121043 is an equidigital number, since it uses as much as digits as its factorization.

202021022121043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 202021022121043 its reverse (340121220120202), we get a palindrome (542142242241245).

The spelling of 202021022121043 in words is "two hundred two trillion, twenty-one billion, twenty-two million, one hundred twenty-one thousand, forty-three".