210021010021201 has 4 divisors (see below), whose sum is σ = 210795995298304. Its totient is φ = 209246024744100.

The previous prime is 210021010021183. The next prime is 210021010021231. The reversal of 210021010021201 is 102120010120012.

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 210021010021201 - 2³¹ = 210018862537553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210021010021231) 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, 387492638145 + ... + 387492638686.

It is an arithmetic number, because the mean of its divisors is an integer number (52698998824576).

Almost surely, 2^{210021010021201} is an apocalyptic number.

It is an amenable number.

210021010021201 is a deficient number, since it is larger than the sum of its proper divisors (774985277103).

210021010021201 is an equidigital number, since it uses as much as digits as its factorization.

210021010021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774985277102.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210021010021201 its reverse (102120010120012), we get a palindrome (312141020141213).

The spelling of 210021010021201 in words is "two hundred ten trillion, twenty-one billion, ten million, twenty-one thousand, two hundred one".