36211611421 has 2 divisors, whose sum is σ = 36211611422. Its totient is φ = 36211611420.

The previous prime is 36211611349. The next prime is 36211611431. The reversal of 36211611421 is 12411611263.

36211611421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18765164196 + 17446447225 = 136986^2 + 132085^2 .

It is a cyclic number.

It is not a de Polignac number, because 36211611421 - 2²¹ = 36209514269 is a prime.

It is a super-2 number, since 2×36211611421² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 36211611421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36211611431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18105805710 + 18105805711.

It is an arithmetic number, because the mean of its divisors is an integer number (18105805711).

Almost surely, 2^36211611421 is an apocalyptic number.

It is an amenable number.

36211611421 is a deficient number, since it is larger than the sum of its proper divisors (1).

36211611421 is an equidigital number, since it uses as much as digits as its factorization.

36211611421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 28.

The spelling of 36211611421 in words is "thirty-six billion, two hundred eleven million, six hundred eleven thousand, four hundred twenty-one".