13220012 has 48 divisors (see below), whose sum is σ = 26342400. Its totient is φ = 5762880.

The previous prime is 13220003. The next prime is 13220021. The reversal of 13220012 is 21002231.

It is a happy number.

13220012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13220003) and next prime (13220021).

It is a super-3 number, since 3×13220012³ (a number of 22 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13219975 and 13220002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95039 + ... + 95177.

It is an arithmetic number, because the mean of its divisors is an integer number (548800).

Almost surely, 2^13220012 is an apocalyptic number.

It is an amenable number.

13220012 is a deficient number, since it is larger than the sum of its proper divisors (13122388).

13220012 is a wasteful number, since it uses less digits than its factorization.

13220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 13220012 is about 3635.9334427352. The cubic root of 13220012 is about 236.4525215819.

Adding to 13220012 its reverse (21002231), we get a palindrome (34222243).

The spelling of 13220012 in words is "thirteen million, two hundred twenty thousand, twelve".