13220220036 has 24 divisors (see below), whose sum is σ = 30852626560. Its totient is φ = 4405961952.

The previous prime is 13220219963. The next prime is 13220220037. The reversal of 13220220036 is 63002202231.

It is a junction number, because it is equal to n+sod(n) for n = 13220219994 and 13220220021.

It is not an unprimeable number, because it can be changed into a prime (13220220037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24271 + ... + 164406.

Almost surely, 2^13220220036 is an apocalyptic number.

It is an amenable number.

13220220036 is an abundant number, since it is smaller than the sum of its proper divisors (17632406524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13220220036 is a wasteful number, since it uses less digits than its factorization.

13220220036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194523 (or 194521 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13220220036 its reverse (63002202231), we get a palindrome (76222422267).

The spelling of 13220220036 in words is "thirteen billion, two hundred twenty million, two hundred twenty thousand, thirty-six".