212111201069 has 2 divisors, whose sum is σ = 212111201070. Its totient is φ = 212111201068.

The previous prime is 212111201023. The next prime is 212111201119. The reversal of 212111201069 is 960102111212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112768356100 + 99342844969 = 335810^2 + 315187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212111201069 is a prime.

It is a super-2 number, since 2×212111201069² (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 (212111201009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106055600534 + 106055600535.

It is an arithmetic number, because the mean of its divisors is an integer number (106055600535).

Almost surely, 2^212111201069 is an apocalyptic number.

It is an amenable number.

212111201069 is a deficient number, since it is larger than the sum of its proper divisors (1).

212111201069 is an equidigital number, since it uses as much as digits as its factorization.

212111201069 is an evil number, because the sum of its binary digits is even.

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

The spelling of 212111201069 in words is "two hundred twelve billion, one hundred eleven million, two hundred one thousand, sixty-nine".