201224142461 has 2 divisors, whose sum is σ = 201224142462. Its totient is φ = 201224142460.

The previous prime is 201224142401. The next prime is 201224142467. The reversal of 201224142461 is 164241422102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120443702500 + 80780439961 = 347050^2 + 284219^2 .

It is a cyclic number.

It is not a de Polignac number, because 201224142461 - 2³⁴ = 184044273277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201224142467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100612071230 + 100612071231.

It is an arithmetic number, because the mean of its divisors is an integer number (100612071231).

Almost surely, 2^201224142461 is an apocalyptic number.

It is an amenable number.

201224142461 is a deficient number, since it is larger than the sum of its proper divisors (1).

201224142461 is an equidigital number, since it uses as much as digits as its factorization.

201224142461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 201224142461 its reverse (164241422102), we get a palindrome (365465564563).

The spelling of 201224142461 in words is "two hundred one billion, two hundred twenty-four million, one hundred forty-two thousand, four hundred sixty-one".