121220414 has 24 divisors (see below), whose sum is σ = 211951080. Its totient is φ = 51845136.

The previous prime is 121220413. The next prime is 121220441. The reversal of 121220414 is 414022121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121220392 and 121220401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63644 + ... + 65520.

It is an arithmetic number, because the mean of its divisors is an integer number (8831295).

Almost surely, 2^121220414 is an apocalyptic number.

121220414 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

121220414 is a deficient number, since it is larger than the sum of its proper divisors (90730666).

121220414 is a wasteful number, since it uses less digits than its factorization.

121220414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552 (or 2545 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 121220414 is about 11010.0142597546. The cubic root of 121220414 is about 494.9088891249.

Adding to 121220414 its reverse (414022121), we get a palindrome (535242535).

The spelling of 121220414 in words is "one hundred twenty-one million, two hundred twenty thousand, four hundred fourteen".