101020222001 has 2 divisors, whose sum is σ = 101020222002. Its totient is φ = 101020222000.

The previous prime is 101020221997. The next prime is 101020222019. The reversal of 101020222001 is 100222020101.

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., 84494862400 + 16525359601 = 290680^2 + 128551^2 .

It is a cyclic number.

It is not a de Polignac number, because 101020222001 - 2² = 101020221997 is a prime.

It is not a weakly prime, because it can be changed into another prime (101020222081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50510111000 + 50510111001.

It is an arithmetic number, because the mean of its divisors is an integer number (50510111001).

Almost surely, 2^101020222001 is an apocalyptic number.

It is an amenable number.

101020222001 is a deficient number, since it is larger than the sum of its proper divisors (1).

101020222001 is an equidigital number, since it uses as much as digits as its factorization.

101020222001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 101020222001 its reverse (100222020101), we get a palindrome (201242242102).

The spelling of 101020222001 in words is "one hundred one billion, twenty million, two hundred twenty-two thousand, one".