20214611 has 2 divisors, whose sum is σ = 20214612. Its totient is φ = 20214610.

The previous prime is 20214587. The next prime is 20214647. The reversal of 20214611 is 11641202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20214611 - 2¹⁸ = 19952467 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20214611.

It is not a weakly prime, because it can be changed into another prime (20214661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10107305 + 10107306.

It is an arithmetic number, because the mean of its divisors is an integer number (10107306).

Almost surely, 2^20214611 is an apocalyptic number.

20214611 is a deficient number, since it is larger than the sum of its proper divisors (1).

20214611 is an equidigital number, since it uses as much as digits as its factorization.

20214611 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 17.

The square root of 20214611 is about 4496.0661694419. The cubic root of 20214611 is about 272.4092158937.

Adding to 20214611 its reverse (11641202), we get a palindrome (31855813).

The spelling of 20214611 in words is "twenty million, two hundred fourteen thousand, six hundred eleven".