12220362 has 64 divisors (see below), whose sum is σ = 33868800. Its totient is φ = 3173040.

The previous prime is 12220361. The next prime is 12220393. The reversal of 12220362 is 26302221.

It is a super-2 number, since 2×12220362² = 298674494822088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12220361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2689 + ... + 5627.

It is an arithmetic number, because the mean of its divisors is an integer number (529200).

Almost surely, 2^12220362 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12220362, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16934400).

12220362 is an abundant number, since it is smaller than the sum of its proper divisors (21648438).

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

12220362 is a wasteful number, since it uses less digits than its factorization.

12220362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2968 (or 2962 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 12220362 is about 3495.7634359321. The cubic root of 12220362 is about 230.3357541139.

Adding to 12220362 its reverse (26302221), we get a palindrome (38522583).

It can be divided in two parts, 122203 and 62, that added together give a triangular number (122265 = T₄₉₄).

The spelling of 12220362 in words is "twelve million, two hundred twenty thousand, three hundred sixty-two".