1001420201 has 2 divisors, whose sum is σ = 1001420202. Its totient is φ = 1001420200.

The previous prime is 1001420197. The next prime is 1001420219. The reversal of 1001420201 is 1020241001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 983136025 + 18284176 = 31355^2 + 4276^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001420201 - 2² = 1001420197 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001420221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500710100 + 500710101.

It is an arithmetic number, because the mean of its divisors is an integer number (500710101).

Almost surely, 2^1001420201 is an apocalyptic number.

It is an amenable number.

1001420201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001420201 is an equidigital number, since it uses as much as digits as its factorization.

1001420201 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.

The square root of 1001420201 is about 31645.2239840390. The cubic root of 1001420201 is about 1000.4731764021.

Adding to 1001420201 its reverse (1020241001), we get a palindrome (2021661202).

The spelling of 1001420201 in words is "one billion, one million, four hundred twenty thousand, two hundred one".