121600213 has 12 divisors (see below), whose sum is σ = 142031232. Its totient is φ = 103803000.

The previous prime is 121600183. The next prime is 121600217. The reversal of 121600213 is 312006121.

It is not a de Polignac number, because 121600213 - 2⁵ = 121600181 is a prime.

It is a super-2 number, since 2×121600213² = 29573223603290738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121600217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7356 + ... + 17242.

It is an arithmetic number, because the mean of its divisors is an integer number (11835936).

Almost surely, 2^121600213 is an apocalyptic number.

It is an amenable number.

121600213 is a deficient number, since it is larger than the sum of its proper divisors (20431019).

121600213 is an equidigital number, since it uses as much as digits as its factorization.

121600213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10152 (or 10145 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 121600213 is about 11027.2486595705. The cubic root of 121600213 is about 495.4252211214.

Adding to 121600213 its reverse (312006121), we get a palindrome (433606334).

It can be divided in two parts, 12 and 1600213, that added together give a square (1600225 = 1265²).

The spelling of 121600213 in words is "one hundred twenty-one million, six hundred thousand, two hundred thirteen".