200022122120021 has 2 divisors, whose sum is σ = 200022122120022. Its totient is φ = 200022122120020.

The previous prime is 200022122119957. The next prime is 200022122120063. The reversal of 200022122120021 is 120021221220002.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179035773180625 + 20986348939396 = 13380425^2 + 4581086^2 .

It is a cyclic number.

It is not a de Polignac number, because 200022122120021 - 2⁶ = 200022122119957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200022122120921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100011061060010 + 100011061060011.

It is an arithmetic number, because the mean of its divisors is an integer number (100011061060011).

Almost surely, 2^{200022122120021} is an apocalyptic number.

It is an amenable number.

200022122120021 is a deficient number, since it is larger than the sum of its proper divisors (1).

200022122120021 is an equidigital number, since it uses as much as digits as its factorization.

200022122120021 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 200022122120021 its reverse (120021221220002), we get a palindrome (320043343340023).

The spelling of 200022122120021 in words is "two hundred trillion, twenty-two billion, one hundred twenty-two million, one hundred twenty thousand, twenty-one".