202120022220001 has 2 divisors, whose sum is σ = 202120022220002. Its totient is φ = 202120022220000.

The previous prime is 202120022219977. The next prime is 202120022220013. The reversal of 202120022220001 is 100022220021202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158207995861776 + 43912026358225 = 12578076^2 + 6626615^2 .

It is a cyclic number.

It is not a de Polignac number, because 202120022220001 - 2²⁷ = 202119888002273 is a prime.

It is not a weakly prime, because it can be changed into another prime (202120022220401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101060011110000 + 101060011110001.

It is an arithmetic number, because the mean of its divisors is an integer number (101060011110001).

Almost surely, 2^{202120022220001} is an apocalyptic number.

It is an amenable number.

202120022220001 is a deficient number, since it is larger than the sum of its proper divisors (1).

202120022220001 is an equidigital number, since it uses as much as digits as its factorization.

202120022220001 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 16.

Adding to 202120022220001 its reverse (100022220021202), we get a palindrome (302142242241203).

The spelling of 202120022220001 in words is "two hundred two trillion, one hundred twenty billion, twenty-two million, two hundred twenty thousand, one".