121754216 has 16 divisors (see below), whose sum is σ = 228417540. Its totient is φ = 60842880.

The previous prime is 121754207. The next prime is 121754219. The reversal of 121754216 is 612457121.

It can be written as a sum of positive squares in 2 ways, for example, as 89378116 + 32376100 = 9454^2 + 5690^2 .

It is a super-2 number, since 2×121754216² = 29648178227549312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121754219) 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, 17150 + ... + 23186.

Almost surely, 2^121754216 is an apocalyptic number.

It is an amenable number.

121754216 is a deficient number, since it is larger than the sum of its proper divisors (106663324).

121754216 is a wasteful number, since it uses less digits than its factorization.

121754216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8564 (or 8560 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 121754216 is about 11034.2292888992. The cubic root of 121754216 is about 495.6342799210.

The spelling of 121754216 in words is "one hundred twenty-one million, seven hundred fifty-four thousand, two hundred sixteen".