36211005421 has 2 divisors, whose sum is σ = 36211005422. Its totient is φ = 36211005420.

The previous prime is 36211005409. The next prime is 36211005427. The reversal of 36211005421 is 12450011263.

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., 30093575625 + 6117429796 = 173475^2 + 78214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36211005421 is a prime.

It is a super-2 number, since 2×36211005421² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36211005427) 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, 18105502710 + 18105502711.

It is an arithmetic number, because the mean of its divisors is an integer number (18105502711).

Almost surely, 2^36211005421 is an apocalyptic number.

It is an amenable number.

36211005421 is a deficient number, since it is larger than the sum of its proper divisors (1).

36211005421 is an equidigital number, since it uses as much as digits as its factorization.

36211005421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 36211005421 its reverse (12450011263), we get a palindrome (48661016684).

The spelling of 36211005421 in words is "thirty-six billion, two hundred eleven million, five thousand, four hundred twenty-one".