121454216 has 24 divisors (see below), whose sum is σ = 246594330. Its totient is φ = 56055168.

The previous prime is 121454167. The next prime is 121454219. The reversal of 121454216 is 612454121.

It can be written as a sum of positive squares in 3 ways, for example, as 74476900 + 46977316 = 8630^2 + 6854^2 .

It is a super-2 number, since 2×121454216² = 29502253168349312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (121454219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43565 + ... + 46268.

Almost surely, 2^121454216 is an apocalyptic number.

It is an amenable number.

121454216 is an abundant number, since it is smaller than the sum of its proper divisors (125140114).

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

121454216 is a wasteful number, since it uses less digits than its factorization.

121454216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89865 (or 89848 counting only the distinct ones).

The product of its digits is 1920, while the sum is 26.

The square root of 121454216 is about 11020.6268424260. The cubic root of 121454216 is about 495.2268674042.

It can be divided in two parts, 12145 and 4216, that added together give a palindrome (16361).

The spelling of 121454216 in words is "one hundred twenty-one million, four hundred fifty-four thousand, two hundred sixteen".