121412355 has 16 divisors (see below), whose sum is σ = 199510944. Its totient is φ = 63002880.

The previous prime is 121412353. The next prime is 121412363. The reversal of 121412355 is 553214121.

It is a happy number.

It is not a de Polignac number, because 121412355 - 2¹ = 121412353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121412353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108826 + ... + 109935.

It is an arithmetic number, because the mean of its divisors is an integer number (12469434).

Almost surely, 2^121412355 is an apocalyptic number.

121412355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

121412355 is a deficient number, since it is larger than the sum of its proper divisors (78098589).

121412355 is a wasteful number, since it uses less digits than its factorization.

121412355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218806.

The product of its digits is 1200, while the sum is 24.

The square root of 121412355 is about 11018.7274673621. The cubic root of 121412355 is about 495.1699651004.

Adding to 121412355 its reverse (553214121), we get a palindrome (674626476).

The spelling of 121412355 in words is "one hundred twenty-one million, four hundred twelve thousand, three hundred fifty-five".