201021412 has 6 divisors (see below), whose sum is σ = 351787478. Its totient is φ = 100510704.

The previous prime is 201021367. The next prime is 201021419. The reversal of 201021412 is 214120102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 112021056 + 89000356 = 10584^2 + 9434^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201021392 and 201021401.

It is not an unprimeable number, because it can be changed into a prime (201021419) 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 as a sum of consecutive naturals, namely, 25127673 + ... + 25127680.

Almost surely, 2^201021412 is an apocalyptic number.

It is an amenable number.

201021412 is a deficient number, since it is larger than the sum of its proper divisors (150766066).

201021412 is a wasteful number, since it uses less digits than its factorization.

201021412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50255357 (or 50255355 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 201021412 is about 14178.2020016644. The cubic root of 201021412 is about 585.7973999387.

Adding to 201021412 its reverse (214120102), we get a palindrome (415141514).

The spelling of 201021412 in words is "two hundred one million, twenty-one thousand, four hundred twelve".