13022220 has 48 divisors (see below), whose sum is σ = 38384640. Its totient is φ = 3289536.

The previous prime is 13022171. The next prime is 13022231. The reversal of 13022220 is 2222031.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 13022196 and 13022205.

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, 4572 + ... + 6851.

It is an arithmetic number, because the mean of its divisors is an integer number (799680).

Almost surely, 2^13022220 is an apocalyptic number.

13022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13022220 is an abundant number, since it is smaller than the sum of its proper divisors (25362420).

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

13022220 is a wasteful number, since it uses less digits than its factorization.

13022220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11454 (or 11452 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 13022220 is about 3608.6313194894. The cubic root of 13022220 is about 235.2673583049.

Adding to 13022220 its reverse (2222031), we get a palindrome (15244251).

The spelling of 13022220 in words is "thirteen million, twenty-two thousand, two hundred twenty".