12211002 has 24 divisors (see below), whose sum is σ = 26822484. Its totient is φ = 4014144.

The previous prime is 12210983. The next prime is 12211009. The reversal of 12211002 is 20011221.

It can be written as a sum of positive squares in 2 ways, for example, as 11634921 + 576081 = 3411^2 + 759^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (12211009) 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 11 ways as a sum of consecutive naturals, for example, 3333 + ... + 5960.

Almost surely, 2^12211002 is an apocalyptic number.

12211002 is an abundant number, since it is smaller than the sum of its proper divisors (14611482).

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

12211002 is a wasteful number, since it uses less digits than its factorization.

12211002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9374 (or 9371 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 12211002 is about 3494.4244161235. The cubic root of 12211002 is about 230.2769317067.

Adding to 12211002 its reverse (20011221), we get a palindrome (32222223).

The spelling of 12211002 in words is "twelve million, two hundred eleven thousand, two".