212134634446105 has 16 divisors (see below), whose sum is σ = 293596558295040. Its totient is φ = 144129219521472.

The previous prime is 212134634446079. The next prime is 212134634446109. The reversal of 212134634446105 is 501644436431212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212134634446105 - 2²⁹ = 212134097575193 is a prime.

It is a super-2 number, since 2×212134634446105² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212134634446109) 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, 27802700569 + ... + 27802708198.

It is an arithmetic number, because the mean of its divisors is an integer number (18349784893440).

Almost surely, 2^{212134634446105} is an apocalyptic number.

It is an amenable number.

212134634446105 is a deficient number, since it is larger than the sum of its proper divisors (81461923848935).

212134634446105 is a wasteful number, since it uses less digits than its factorization.

212134634446105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55605408888.

The product of its (nonzero) digits is 1658880, while the sum is 46.

The spelling of 212134634446105 in words is "two hundred twelve trillion, one hundred thirty-four billion, six hundred thirty-four million, four hundred forty-six thousand, one hundred five".