121858214 has 4 divisors (see below), whose sum is σ = 182787324. Its totient is φ = 60929106.

The previous prime is 121858201. The next prime is 121858237. The reversal of 121858214 is 412858121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 412858121 = 13 ⋅31758317.

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, 30464552 + ... + 30464555.

It is an arithmetic number, because the mean of its divisors is an integer number (45696831).

Almost surely, 2^121858214 is an apocalyptic number.

121858214 is a deficient number, since it is larger than the sum of its proper divisors (60929110).

121858214 is an equidigital number, since it uses as much as digits as its factorization.

121858214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60929109.

The product of its digits is 5120, while the sum is 32.

The square root of 121858214 is about 11038.9408006384. The cubic root of 121858214 is about 495.7753573215.

The spelling of 121858214 in words is "one hundred twenty-one million, eight hundred fifty-eight thousand, two hundred fourteen".