20214121559 has 2 divisors, whose sum is σ = 20214121560. Its totient is φ = 20214121558.

The previous prime is 20214121553. The next prime is 20214121579. The reversal of 20214121559 is 95512141202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20214121559 is a prime.

It is a super-2 number, since 2×20214121559² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20214121553) 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 as a sum of consecutive naturals, namely, 10107060779 + 10107060780.

It is an arithmetic number, because the mean of its divisors is an integer number (10107060780).

Almost surely, 2^20214121559 is an apocalyptic number.

20214121559 is a deficient number, since it is larger than the sum of its proper divisors (1).

20214121559 is an equidigital number, since it uses as much as digits as its factorization.

20214121559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 20214121559 in words is "twenty billion, two hundred fourteen million, one hundred twenty-one thousand, five hundred fifty-nine".