202122022001 has 2 divisors, whose sum is σ = 202122022002. Its totient is φ = 202122022000.

The previous prime is 202122021973. The next prime is 202122022007. The reversal of 202122022001 is 100220221202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105463212001 + 96658810000 = 324751^2 + 310900^2 .

It is a cyclic number.

It is not a de Polignac number, because 202122022001 - 2¹⁰ = 202122020977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (202122022007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101061011000 + 101061011001.

It is an arithmetic number, because the mean of its divisors is an integer number (101061011001).

Almost surely, 2^202122022001 is an apocalyptic number.

It is an amenable number.

202122022001 is a deficient number, since it is larger than the sum of its proper divisors (1).

202122022001 is an equidigital number, since it uses as much as digits as its factorization.

202122022001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202122022001 its reverse (100220221202), we get a palindrome (302342243203).

The spelling of 202122022001 in words is "two hundred two billion, one hundred twenty-two million, twenty-two thousand, one".