121251026 has 8 divisors (see below), whose sum is σ = 195867084. Its totient is φ = 55962000.

The previous prime is 121251007. The next prime is 121251041. The reversal of 121251026 is 620152121.

It can be written as a sum of positive squares in 2 ways, for example, as 113955625 + 7295401 = 10675^2 + 2701^2 .

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

It is a super-2 number, since 2×121251026² = 29403622612105352, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121250989 and 121251007.

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 3 ways as a sum of consecutive naturals, for example, 2331725 + ... + 2331776.

Almost surely, 2^121251026 is an apocalyptic number.

121251026 is a deficient number, since it is larger than the sum of its proper divisors (74616058).

121251026 is a wasteful number, since it uses less digits than its factorization.

121251026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663516.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 121251026 is about 11011.4043609342. The cubic root of 121251026 is about 494.9505456834.

The spelling of 121251026 in words is "one hundred twenty-one million, two hundred fifty-one thousand, twenty-six".