121243214 has 4 divisors (see below), whose sum is σ = 181864824. Its totient is φ = 60621606.

The previous prime is 121243193. The next prime is 121243223. The reversal of 121243214 is 412342121.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 30310802 + ... + 30310805.

It is an arithmetic number, because the mean of its divisors is an integer number (45466206).

Almost surely, 2^121243214 is an apocalyptic number.

121243214 is a deficient number, since it is larger than the sum of its proper divisors (60621610).

121243214 is an equidigital number, since it uses as much as digits as its factorization.

121243214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60621609.

The product of its digits is 384, while the sum is 20.

The square root of 121243214 is about 11011.0496320741. The cubic root of 121243214 is about 494.9399158442.

Adding to 121243214 its reverse (412342121), we get a palindrome (533585335).

The spelling of 121243214 in words is "one hundred twenty-one million, two hundred forty-three thousand, two hundred fourteen".