21212201159 has 2 divisors, whose sum is σ = 21212201160. Its totient is φ = 21212201158.

The previous prime is 21212201063. The next prime is 21212201209. The reversal of 21212201159 is 95110221212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21212201159 - 2¹² = 21212197063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21212201359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10606100579 + 10606100580.

It is an arithmetic number, because the mean of its divisors is an integer number (10606100580).

Almost surely, 2^21212201159 is an apocalyptic number.

21212201159 is a deficient number, since it is larger than the sum of its proper divisors (1).

21212201159 is an equidigital number, since it uses as much as digits as its factorization.

21212201159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 26.

The spelling of 21212201159 in words is "twenty-one billion, two hundred twelve million, two hundred one thousand, one hundred fifty-nine".