13220212 has 12 divisors (see below), whose sum is σ = 23173696. Its totient is φ = 6599160.

The previous prime is 13220191. The next prime is 13220213. The reversal of 13220212 is 21202231.

It is a junction number, because it is equal to n+sod(n) for n = 13220192 and 13220201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373 + ... + 5155.

Almost surely, 2^13220212 is an apocalyptic number.

It is an amenable number.

13220212 is a deficient number, since it is larger than the sum of its proper divisors (9953484).

13220212 is a wasteful number, since it uses less digits than its factorization.

13220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5478 (or 5476 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 13220212 is about 3635.9609458849. The cubic root of 13220212 is about 236.4537139728.

Adding to 13220212 its reverse (21202231), we get a palindrome (34422443).

The spelling of 13220212 in words is "thirteen million, two hundred twenty thousand, two hundred twelve".