121426442 has 16 divisors (see below), whose sum is σ = 189886464. Its totient is φ = 58170000.

The previous prime is 121426441. The next prime is 121426447. The reversal of 121426442 is 244624121.

It is not an unprimeable number, because it can be changed into a prime (121426441) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3434 + ... + 15957.

It is an arithmetic number, because the mean of its divisors is an integer number (11867904).

Almost surely, 2^121426442 is an apocalyptic number.

121426442 is a deficient number, since it is larger than the sum of its proper divisors (68460022).

121426442 is a wasteful number, since it uses less digits than its factorization.

121426442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19525.

The product of its digits is 3072, while the sum is 26.

The square root of 121426442 is about 11019.3666787162. The cubic root of 121426442 is about 495.1891152370.

The spelling of 121426442 in words is "one hundred twenty-one million, four hundred twenty-six thousand, four hundred forty-two".