212101101269 has 2 divisors, whose sum is σ = 212101101270. Its totient is φ = 212101101268.

The previous prime is 212101101241. The next prime is 212101101287. The reversal of 212101101269 is 962101101212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165136576900 + 46964524369 = 406370^2 + 216713^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212101101269 is a prime.

It is a super-2 number, since 2×212101101269² (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 (212101101209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106050550634 + 106050550635.

It is an arithmetic number, because the mean of its divisors is an integer number (106050550635).

Almost surely, 2^212101101269 is an apocalyptic number.

It is an amenable number.

212101101269 is a deficient number, since it is larger than the sum of its proper divisors (1).

212101101269 is an equidigital number, since it uses as much as digits as its factorization.

212101101269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 212101101269 in words is "two hundred twelve billion, one hundred one million, one hundred one thousand, two hundred sixty-nine".