1021010201 has 16 divisors (see below), whose sum is σ = 1087257600. Its totient is φ = 956077200.

The previous prime is 1021010197. The next prime is 1021010231. The reversal of 1021010201 is 1020101201.

It is a cyclic number.

It is not a de Polignac number, because 1021010201 - 2² = 1021010197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1021010231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 773420 + ... + 774738.

It is an arithmetic number, because the mean of its divisors is an integer number (67953600).

Almost surely, 2^1021010201 is an apocalyptic number.

It is an amenable number.

1021010201 is a deficient number, since it is larger than the sum of its proper divisors (66247399).

1021010201 is a wasteful number, since it uses less digits than its factorization.

1021010201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780.

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 1021010201 is about 31953.2502415638. The cubic root of 1021010201 is about 1006.9549173199.

Adding to 1021010201 its reverse (1020101201), we get a palindrome (2041111402).

The spelling of 1021010201 in words is "one billion, twenty-one million, ten thousand, two hundred one".