21200010221201 has 64 divisors (see below), whose sum is σ = 25169035100160. Its totient is φ = 17483097360960.

The previous prime is 21200010221197. The next prime is 21200010221213. The reversal of 21200010221201 is 10212201000212.

It is not a de Polignac number, because 21200010221201 - 2² = 21200010221197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21200010221281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3754204760 + ... + 3754210406.

It is an arithmetic number, because the mean of its divisors is an integer number (393266173440).

Almost surely, 2^{21200010221201} is an apocalyptic number.

It is an amenable number.

21200010221201 is a deficient number, since it is larger than the sum of its proper divisors (3969024878959).

21200010221201 is a wasteful number, since it uses less digits than its factorization.

21200010221201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6634.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21200010221201 its reverse (10212201000212), we get a palindrome (31412211221413).

The spelling of 21200010221201 in words is "twenty-one trillion, two hundred billion, ten million, two hundred twenty-one thousand, two hundred one".