21202220010201 has 16 divisors (see below), whose sum is σ = 28540572880896. Its totient is φ = 13999522455296.

The previous prime is 21202220010173. The next prime is 21202220010203. The reversal of 21202220010201 is 10201002220212.

It is a cyclic number.

It is not a de Polignac number, because 21202220010201 - 2¹¹ = 21202220008153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21202220010203) 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, 22310745 + ... + 23241638.

It is an arithmetic number, because the mean of its divisors is an integer number (1783785805056).

Almost surely, 2^{21202220010201} is an apocalyptic number.

It is an amenable number.

21202220010201 is a deficient number, since it is larger than the sum of its proper divisors (7338352870695).

21202220010201 is a wasteful number, since it uses less digits than its factorization.

21202220010201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45553872.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21202220010201 its reverse (10201002220212), we get a palindrome (31403222230413).

The spelling of 21202220010201 in words is "twenty-one trillion, two hundred two billion, two hundred twenty million, ten thousand, two hundred one".