121146213 has 16 divisors (see below), whose sum is σ = 165473280. Its totient is φ = 78802416.

The previous prime is 121146211. The next prime is 121146229. The reversal of 121146213 is 312641121.

It is not a de Polignac number, because 121146213 - 2¹ = 121146211 is a prime.

It is a super-3 number, since 3×121146213³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121146213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121146211) 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, 52306 + ... + 54572.

It is an arithmetic number, because the mean of its divisors is an integer number (10342080).

Almost surely, 2^121146213 is an apocalyptic number.

It is an amenable number.

121146213 is a deficient number, since it is larger than the sum of its proper divisors (44327067).

121146213 is a wasteful number, since it uses less digits than its factorization.

121146213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696.

The product of its digits is 288, while the sum is 21.

The square root of 121146213 is about 11006.6440389430. The cubic root of 121146213 is about 494.8078879027.

Adding to 121146213 its reverse (312641121), we get a palindrome (433787334).

The spelling of 121146213 in words is "one hundred twenty-one million, one hundred forty-six thousand, two hundred thirteen".