202100022001 has 2 divisors, whose sum is σ = 202100022002. Its totient is φ = 202100022000.

The previous prime is 202100021983. The next prime is 202100022011. The reversal of 202100022001 is 100220001202.

It is an a-pointer prime, because the next prime (202100022011) can be obtained adding 202100022001 to its sum of digits (10).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 202096101601 + 3920400 = 449551^2 + 1980^2 .

It is a cyclic number.

It is not a de Polignac number, because 202100022001 - 2¹⁵ = 202099989233 is a prime.

It is not a weakly prime, because it can be changed into another prime (202100022011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101050011000 + 101050011001.

It is an arithmetic number, because the mean of its divisors is an integer number (101050011001).

Almost surely, 2^202100022001 is an apocalyptic number.

It is an amenable number.

202100022001 is a deficient number, since it is larger than the sum of its proper divisors (1).

202100022001 is an equidigital number, since it uses as much as digits as its factorization.

202100022001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 202100022001 its reverse (100220001202), we get a palindrome (302320023203).

The spelling of 202100022001 in words is "two hundred two billion, one hundred million, twenty-two thousand, one".