202220112002021 has 2 divisors, whose sum is σ = 202220112002022. Its totient is φ = 202220112002020.

The previous prime is 202220112002011. The next prime is 202220112002131. The reversal of 202220112002021 is 120200211022202.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126841338412996 + 75378773589025 = 11262386^2 + 8682095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202220112002021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202220112002011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101110056001010 + 101110056001011.

It is an arithmetic number, because the mean of its divisors is an integer number (101110056001011).

Almost surely, 2^{202220112002021} is an apocalyptic number.

It is an amenable number.

202220112002021 is a deficient number, since it is larger than the sum of its proper divisors (1).

202220112002021 is an equidigital number, since it uses as much as digits as its factorization.

202220112002021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 202220112002021 its reverse (120200211022202), we get a palindrome (322420323024223).

The spelling of 202220112002021 in words is "two hundred two trillion, two hundred twenty billion, one hundred twelve million, two thousand, twenty-one".