11210201201261 has 2 divisors, whose sum is σ = 11210201201262. Its totient is φ = 11210201201260.

The previous prime is 11210201201189. The next prime is 11210201201281. The reversal of 11210201201261 is 16210210201211.

It is an a-pointer prime, because the next prime (11210201201281) can be obtained adding 11210201201261 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10942824304036 + 267376897225 = 3307994^2 + 517085^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11210201201261 is a prime.

It is a super-2 number, since 2×11210201201261² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11210201201281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605100600630 + 5605100600631.

It is an arithmetic number, because the mean of its divisors is an integer number (5605100600631).

Almost surely, 2^{11210201201261} is an apocalyptic number.

It is an amenable number.

11210201201261 is a deficient number, since it is larger than the sum of its proper divisors (1).

11210201201261 is an equidigital number, since it uses as much as digits as its factorization.

11210201201261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 11210201201261 its reverse (16210210201211), we get a palindrome (27420411402472).

The spelling of 11210201201261 in words is "eleven trillion, two hundred ten billion, two hundred one million, two hundred one thousand, two hundred sixty-one".