13220121202 has 8 divisors (see below), whose sum is σ = 19849381596. Its totient is φ = 6603660672.

The previous prime is 13220121149. The next prime is 13220121241. The reversal of 13220121202 is 20212102231.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9613998601 + 3606122601 = 98051^2 + 60051^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3197383 + ... + 3201514.

Almost surely, 2^13220121202 is an apocalyptic number.

13220121202 is a deficient number, since it is larger than the sum of its proper divisors (6629260394).

13220121202 is a wasteful number, since it uses less digits than its factorization.

13220121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6399932.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 13220121202 its reverse (20212102231), we get a palindrome (33432223433).

The spelling of 13220121202 in words is "thirteen billion, two hundred twenty million, one hundred twenty-one thousand, two hundred two".