212021216159 has 2 divisors, whose sum is σ = 212021216160. Its totient is φ = 212021216158.

The previous prime is 212021216137. The next prime is 212021216167. The reversal of 212021216159 is 951612120212.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212021216159 is a prime.

It is a super-2 number, since 2×212021216159² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212021516159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010608079 + 106010608080.

It is an arithmetic number, because the mean of its divisors is an integer number (106010608080).

Almost surely, 2^212021216159 is an apocalyptic number.

212021216159 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021216159 is an equidigital number, since it uses as much as digits as its factorization.

212021216159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 32.

The spelling of 212021216159 in words is "two hundred twelve billion, twenty-one million, two hundred sixteen thousand, one hundred fifty-nine".