212712760169 has 16 divisors (see below), whose sum is σ = 266092135680. Its totient is φ = 165541181760.

The previous prime is 212712760159. The next prime is 212712760177. The reversal of 212712760169 is 961067217212.

It is a cyclic number.

It is not a de Polignac number, because 212712760169 - 2¹² = 212712756073 is a prime.

It is a super-2 number, since 2×212712760169² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212712760159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19154309 + ... + 19165410.

It is an arithmetic number, because the mean of its divisors is an integer number (16630758480).

Almost surely, 2^212712760169 is an apocalyptic number.

It is an amenable number.

212712760169 is a deficient number, since it is larger than the sum of its proper divisors (53379375511).

212712760169 is a wasteful number, since it uses less digits than its factorization.

212712760169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38319800.

The product of its (nonzero) digits is 127008, while the sum is 44.

The spelling of 212712760169 in words is "two hundred twelve billion, seven hundred twelve million, seven hundred sixty thousand, one hundred sixty-nine".