214065226521 has 8 divisors (see below), whose sum is σ = 317133668960. Its totient is φ = 142710150996.

The previous prime is 214065226477. The next prime is 214065226523. The reversal of 214065226521 is 125622560412.

214065226521 is a `hidden beast` number, since 2 + 1 + 406 + 5 + 226 + 5 + 21 = 666.

It is not a de Polignac number, because 214065226521 - 2⁹ = 214065226009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214065226523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3964170835 + ... + 3964170888.

It is an arithmetic number, because the mean of its divisors is an integer number (39641708620).

Almost surely, 2^214065226521 is an apocalyptic number.

It is an amenable number.

214065226521 is a deficient number, since it is larger than the sum of its proper divisors (103068442439).

214065226521 is an equidigital number, since it uses as much as digits as its factorization.

214065226521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7928341732 (or 7928341726 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 214065226521 its reverse (125622560412), we get a palindrome (339687786933).

The spelling of 214065226521 in words is "two hundred fourteen billion, sixty-five million, two hundred twenty-six thousand, five hundred twenty-one".