121012410 has 64 divisors (see below), whose sum is σ = 298909440. Its totient is φ = 31342080.

The previous prime is 121012403. The next prime is 121012417. The reversal of 121012410 is 14210121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (121012403) and next prime (121012417).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121012417) 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 31 ways as a sum of consecutive naturals, for example, 162499 + ... + 163241.

It is an arithmetic number, because the mean of its divisors is an integer number (4670460).

Almost surely, 2^121012410 is an apocalyptic number.

121012410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121012410, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149454720).

121012410 is an abundant number, since it is smaller than the sum of its proper divisors (177897030).

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

121012410 is a wasteful number, since it uses less digits than its factorization.

121012410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 903.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 121012410 is about 11000.5640764463. The cubic root of 121012410 is about 494.6256530981.

Adding to 121012410 its reverse (14210121), we get a palindrome (135222531).

The spelling of 121012410 in words is "one hundred twenty-one million, twelve thousand, four hundred ten".