12213501 has 8 divisors (see below), whose sum is σ = 16389024. Its totient is φ = 8090160.

The previous prime is 12213499. The next prime is 12213511. The reversal of 12213501 is 10531221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12213501 - 2¹ = 12213499 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213511) 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, 12495 + ... + 13436.

It is an arithmetic number, because the mean of its divisors is an integer number (2048628).

Almost surely, 2^12213501 is an apocalyptic number.

It is an amenable number.

12213501 is a deficient number, since it is larger than the sum of its proper divisors (4175523).

12213501 is a wasteful number, since it uses less digits than its factorization.

12213501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26091.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 12213501 is about 3494.7819674480. The cubic root of 12213501 is about 230.2926394758.

Adding to 12213501 its reverse (10531221), we get a palindrome (22744722).

The spelling of 12213501 in words is "twelve million, two hundred thirteen thousand, five hundred one".