121231466 has 8 divisors (see below), whose sum is σ = 183068100. Its totient is φ = 60208768.

The previous prime is 121231463. The next prime is 121231469. The reversal of 121231466 is 664132121.

It is an interprime number because it is at equal distance from previous prime (121231463) and next prime (121231469).

It can be written as a sum of positive squares in 2 ways, for example, as 92833225 + 28398241 = 9635^2 + 5329^2 .

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 (121231463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203111 + ... + 203706.

Almost surely, 2^121231466 is an apocalyptic number.

121231466 is a deficient number, since it is larger than the sum of its proper divisors (61836634).

121231466 is a wasteful number, since it uses less digits than its factorization.

121231466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406968.

The product of its digits is 1728, while the sum is 26.

The square root of 121231466 is about 11010.5161550220. The cubic root of 121231466 is about 494.9239294047.

Adding to 121231466 its reverse (664132121), we get a palindrome (785363587).

The spelling of 121231466 in words is "one hundred twenty-one million, two hundred thirty-one thousand, four hundred sixty-six".