21202110102201 has 16 divisors (see below), whose sum is σ = 32308431427584. Its totient is φ = 12115321188624.

The previous prime is 21202110102181. The next prime is 21202110102233. The reversal of 21202110102201 is 10220101120212.

It is not a de Polignac number, because 21202110102201 - 2⁶ = 21202110102137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21202110102241) 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, 5558451 + ... + 8561576.

It is an arithmetic number, because the mean of its divisors is an integer number (2019276964224).

Almost surely, 2^{21202110102201} is an apocalyptic number.

21202110102201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21202110102201 is a deficient number, since it is larger than the sum of its proper divisors (11106321325383).

21202110102201 is a wasteful number, since it uses less digits than its factorization.

21202110102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14191540.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21202110102201 its reverse (10220101120212), we get a palindrome (31422211222413).

The spelling of 21202110102201 in words is "twenty-one trillion, two hundred two billion, one hundred ten million, one hundred two thousand, two hundred one".