121421234 has 16 divisors (see below), whose sum is σ = 205099776. Its totient is φ = 53410800.

The previous prime is 121421227. The next prime is 121421269. The reversal of 121421234 is 432124121.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88337 + ... + 89700.

It is an arithmetic number, because the mean of its divisors is an integer number (12818736).

Almost surely, 2^121421234 is an apocalyptic number.

121421234 is a deficient number, since it is larger than the sum of its proper divisors (83678542).

121421234 is a wasteful number, since it uses less digits than its factorization.

121421234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178081.

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

The square root of 121421234 is about 11019.1303649607. The cubic root of 121421234 is about 495.1820355550.

Adding to 121421234 its reverse (432124121), we get a palindrome (553545355).

The spelling of 121421234 in words is "one hundred twenty-one million, four hundred twenty-one thousand, two hundred thirty-four".