121752412 has 6 divisors (see below), whose sum is σ = 213066728. Its totient is φ = 60876204.

The previous prime is 121752403. The next prime is 121752413. The reversal of 121752412 is 214257121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121752413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15219048 + ... + 15219055.

Almost surely, 2^121752412 is an apocalyptic number.

It is an amenable number.

121752412 is a deficient number, since it is larger than the sum of its proper divisors (91314316).

121752412 is a wasteful number, since it uses less digits than its factorization.

121752412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30438107 (or 30438105 counting only the distinct ones).

The product of its digits is 1120, while the sum is 25.

The square root of 121752412 is about 11034.1475429686. The cubic root of 121752412 is about 495.6318320150.

The spelling of 121752412 in words is "one hundred twenty-one million, seven hundred fifty-two thousand, four hundred twelve".