121226256 has 30 divisors (see below), whose sum is σ = 339265550. Its totient is φ = 40408704.

The previous prime is 121226243. The next prime is 121226263. The reversal of 121226256 is 652622121.

121226256 is a `hidden beast` number, since 12 + 1 + 22 + 625 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 120560400 + 665856 = 10980^2 + 816^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 420781 + ... + 421068.

Almost surely, 2^121226256 is an apocalyptic number.

121226256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

121226256 is an abundant number, since it is smaller than the sum of its proper divisors (218039294).

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

121226256 is a wasteful number, since it uses less digits than its factorization.

121226256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841863 (or 841854 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 121226256 is about 11010.2795604835. The cubic root of 121226256 is about 494.9168394120.

Adding to 121226256 its reverse (652622121), we get a palindrome (773848377).

The spelling of 121226256 in words is "one hundred twenty-one million, two hundred twenty-six thousand, two hundred fifty-six".