201212411 has 4 divisors (see below), whose sum is σ = 208150800. Its totient is φ = 194274024.

The previous prime is 201212399. The next prime is 201212419. The reversal of 201212411 is 114212102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 114212102 = 2 ⋅57106051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201212411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201212419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3469151 + ... + 3469208.

It is an arithmetic number, because the mean of its divisors is an integer number (52037700).

Almost surely, 2^201212411 is an apocalyptic number.

201212411 is a deficient number, since it is larger than the sum of its proper divisors (6938389).

201212411 is an equidigital number, since it uses as much as digits as its factorization.

201212411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6938388.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 201212411 is about 14184.9360590734. The cubic root of 201212411 is about 585.9828715577.

Adding to 201212411 its reverse (114212102), we get a palindrome (315424513).

The spelling of 201212411 in words is "two hundred one million, two hundred twelve thousand, four hundred eleven".