13220101 has 8 divisors (see below), whose sum is σ = 14606784. Its totient is φ = 11901120.

The previous prime is 13220099. The next prime is 13220117. The reversal of 13220101 is 10102231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13220101 - 2¹ = 13220099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16515 + ... + 17296.

It is an arithmetic number, because the mean of its divisors is an integer number (1825848).

Almost surely, 2^13220101 is an apocalyptic number.

It is an amenable number.

13220101 is a deficient number, since it is larger than the sum of its proper divisors (1386683).

13220101 is a wasteful number, since it uses less digits than its factorization.

13220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33851.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 13220101 is about 3635.9456816625. The cubic root of 13220101 is about 236.4530521974.

Adding to 13220101 its reverse (10102231), we get a palindrome (23322332).

The spelling of 13220101 in words is "thirteen million, two hundred twenty thousand, one hundred one".