12202145 has 8 divisors (see below), whose sum is σ = 14705280. Its totient is φ = 9719920.

The previous prime is 12202139. The next prime is 12202171. The reversal of 12202145 is 54120221.

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

It is not a de Polignac number, because 12202145 - 2⁴ = 12202129 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3911 + ... + 6300.

It is an arithmetic number, because the mean of its divisors is an integer number (1838160).

Almost surely, 2^12202145 is an apocalyptic number.

It is an amenable number.

12202145 is a deficient number, since it is larger than the sum of its proper divisors (2503135).

12202145 is a wasteful number, since it uses less digits than its factorization.

12202145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10455.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 12202145 is about 3493.1568816759. The cubic root of 12202145 is about 230.2212426895.

Adding to 12202145 its reverse (54120221), we get a palindrome (66322366).

It can be divided in two parts, 122021 and 45, that multiplied together give a palindrome (5490945).

The spelling of 12202145 in words is "twelve million, two hundred two thousand, one hundred forty-five".