121016426 has 8 divisors (see below), whose sum is σ = 181577700. Its totient is φ = 60490528.

The previous prime is 121016369. The next prime is 121016429. The reversal of 121016426 is 624610121.

It can be written as a sum of positive squares in 2 ways, for example, as 119924401 + 1092025 = 10951^2 + 1045^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (121016429) 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 3 ways as a sum of consecutive naturals, for example, 2750 + ... + 15798.

Almost surely, 2^121016426 is an apocalyptic number.

121016426 is a deficient number, since it is larger than the sum of its proper divisors (60561274).

121016426 is a wasteful number, since it uses less digits than its factorization.

121016426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17688.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 121016426 is about 11000.7466110260. The cubic root of 121016426 is about 494.6311246985.

Adding to 121016426 its reverse (624610121), we get a palindrome (745626547).

The spelling of 121016426 in words is "one hundred twenty-one million, sixteen thousand, four hundred twenty-six".