12210938 has 4 divisors (see below), whose sum is σ = 18316410. Its totient is φ = 6105468.

The previous prime is 12210937. The next prime is 12210949. The reversal of 12210938 is 83901221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11135569 + 1075369 = 3337^2 + 1037^2 .

It is a plaindrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (12210937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3052733 + ... + 3052736.

Almost surely, 2^12210938 is an apocalyptic number.

12210938 is a deficient number, since it is larger than the sum of its proper divisors (6105472).

12210938 is an equidigital number, since it uses as much as digits as its factorization.

12210938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6105471.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 12210938 is about 3494.4152586663. The cubic root of 12210938 is about 230.2765293988.

The spelling of 12210938 in words is "twelve million, two hundred ten thousand, nine hundred thirty-eight".