121422105 has 32 divisors (see below), whose sum is σ = 246700800. Its totient is φ = 55506816.

The previous prime is 121422089. The next prime is 121422113. The reversal of 121422105 is 501224121.

It is not a de Polignac number, because 121422105 - 2⁴ = 121422089 is a prime.

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 in 31 ways as a sum of consecutive naturals, for example, 63300 + ... + 65189.

It is an arithmetic number, because the mean of its divisors is an integer number (7709400).

Almost surely, 2^121422105 is an apocalyptic number.

121422105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121422105 is an abundant number, since it is smaller than the sum of its proper divisors (125278695).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121422105 is a wasteful number, since it uses less digits than its factorization.

121422105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128510 (or 128504 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 121422105 is about 11019.1698870650. The cubic root of 121422105 is about 495.1832195943.

Adding to 121422105 its reverse (501224121), we get a palindrome (622646226).

The spelling of 121422105 in words is "one hundred twenty-one million, four hundred twenty-two thousand, one hundred five".