121202412 has 12 divisors (see below), whose sum is σ = 282805656. Its totient is φ = 40400800.

The previous prime is 121202407. The next prime is 121202413. The reversal of 121202412 is 214202121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 121202391 and 121202400.

It is not an unprimeable number, because it can be changed into a prime (121202413) 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, 5050089 + ... + 5050112.

It is an arithmetic number, because the mean of its divisors is an integer number (23567138).

Almost surely, 2^121202412 is an apocalyptic number.

121202412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121202412 is an abundant number, since it is smaller than the sum of its proper divisors (161603244).

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

121202412 is a wasteful number, since it uses less digits than its factorization.

121202412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10100208 (or 10100206 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 121202412 is about 11009.1967009405. The cubic root of 121202412 is about 494.8843888762.

Adding to 121202412 its reverse (214202121), we get a palindrome (335404533).

The spelling of 121202412 in words is "one hundred twenty-one million, two hundred two thousand, four hundred twelve".