121226949 has 20 divisors (see below), whose sum is σ = 191746764. Its totient is φ = 76063104.

The previous prime is 121226929. The next prime is 121226977. The reversal of 121226949 is 949622121.

It can be written as a sum of positive squares in 2 ways, for example, as 91872225 + 29354724 = 9585^2 + 5418^2 .

It is a de Polignac number, because none of the positive numbers 2^k-121226949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121226909) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 42642 + ... + 45395.

Almost surely, 2^121226949 is an apocalyptic number.

It is an amenable number.

121226949 is a deficient number, since it is larger than the sum of its proper divisors (70519815).

121226949 is an equidigital number, since it uses as much as digits as its factorization.

121226949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88066 (or 88057 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 121226949 is about 11010.3110310291. The cubic root of 121226949 is about 494.9177824880.

It can be divided in two parts, 12 and 1226949, that added together give a triangular number (1226961 = T₁₅₆₆).

The spelling of 121226949 in words is "one hundred twenty-one million, two hundred twenty-six thousand, nine hundred forty-nine".