1021021010201 has 4 divisors (see below), whose sum is σ = 1021134327504. Its totient is φ = 1020907692900.

The previous prime is 1021021010173. The next prime is 1021021010221. The reversal of 1021021010201 is 1020101201201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1021021010201 - 2¹⁸ = 1021020748057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021021010221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56645135 + ... + 56663156.

It is an arithmetic number, because the mean of its divisors is an integer number (255283581876).

Almost surely, 2^{1021021010201} is an apocalyptic number.

It is an amenable number.

1021021010201 is a deficient number, since it is larger than the sum of its proper divisors (113317303).

1021021010201 is an equidigital number, since it uses as much as digits as its factorization.

1021021010201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113317302.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1021021010201 its reverse (1020101201201), we get a palindrome (2041122211402).

The spelling of 1021021010201 in words is "one trillion, twenty-one billion, twenty-one million, ten thousand, two hundred one".