21301021020201 has 16 divisors (see below), whose sum is σ = 30633649279296. Its totient is φ = 13087934421696.

The previous prime is 21301021020107. The next prime is 21301021020203. The reversal of 21301021020201 is 10202012010312.

It is not a de Polignac number, because 21301021020201 - 2¹⁹ = 21301020495913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21301021020203) 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, 424687230 + ... + 424737383.

It is an arithmetic number, because the mean of its divisors is an integer number (1914603079956).

Almost surely, 2^{21301021020201} is an apocalyptic number.

It is an amenable number.

21301021020201 is a deficient number, since it is larger than the sum of its proper divisors (9332628259095).

21301021020201 is a wasteful number, since it uses less digits than its factorization.

21301021020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849425272.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21301021020201 its reverse (10202012010312), we get a palindrome (31503033030513).

The spelling of 21301021020201 in words is "twenty-one trillion, three hundred one billion, twenty-one million, twenty thousand, two hundred one".