21212201359 has 2 divisors, whose sum is σ = 21212201360. Its totient is φ = 21212201358.

The previous prime is 21212201321. The next prime is 21212201377. The reversal of 21212201359 is 95310221212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21212201359 - 2¹⁷ = 21212070287 is a prime.

It is a super-2 number, since 2×21212201359² (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 (21212201389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10606100679 + 10606100680.

It is an arithmetic number, because the mean of its divisors is an integer number (10606100680).

Almost surely, 2^21212201359 is an apocalyptic number.

21212201359 is a deficient number, since it is larger than the sum of its proper divisors (1).

21212201359 is an equidigital number, since it uses as much as digits as its factorization.

21212201359 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 21212201359 in words is "twenty-one billion, two hundred twelve million, two hundred one thousand, three hundred fifty-nine".