201214436261 has 4 divisors (see below), whose sum is σ = 201335870892. Its totient is φ = 201093001632.

The previous prime is 201214436243. The next prime is 201214436303. The reversal of 201214436261 is 162634412102.

201214436261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 110968268161 + 90246168100 = 333119^2 + 300410^2 .

It is a cyclic number.

It is not a de Polignac number, because 201214436261 - 2⁶ = 201214436197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201214436221) 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, 60714830 + ... + 60718143.

It is an arithmetic number, because the mean of its divisors is an integer number (50333967723).

Almost surely, 2^201214436261 is an apocalyptic number.

It is an amenable number.

201214436261 is a deficient number, since it is larger than the sum of its proper divisors (121434631).

201214436261 is a wasteful number, since it uses less digits than its factorization.

201214436261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121434630.

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 201214436261 its reverse (162634412102), we get a palindrome (363848848363).

The spelling of 201214436261 in words is "two hundred one billion, two hundred fourteen million, four hundred thirty-six thousand, two hundred sixty-one".