13020120221210 has 16 divisors (see below), whose sum is σ = 23436551790792. Its totient is φ = 5207973556800.

The previous prime is 13020120221123. The next prime is 13020120221219. The reversal of 13020120221210 is 1212202102031.

It can be written as a sum of positive squares in 4 ways, for example, as 7298853286321 + 5721266934889 = 2701639^2 + 2391917^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13020120221219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8579981 + ... + 9982800.

Almost surely, 2^{13020120221210} is an apocalyptic number.

13020120221210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13020120221210 is a deficient number, since it is larger than the sum of its proper divisors (10416431569582).

13020120221210 is a wasteful number, since it uses less digits than its factorization.

13020120221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18632929.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 13020120221210 its reverse (1212202102031), we get a palindrome (14232322323241).

The spelling of 13020120221210 in words is "thirteen trillion, twenty billion, one hundred twenty million, two hundred twenty-one thousand, two hundred ten".