212404062105 has 32 divisors (see below), whose sum is σ = 383797518720. Its totient is φ = 111425077440.

The previous prime is 212404062067. The next prime is 212404062107. The reversal of 212404062105 is 501260404212.

212404062105 is a `hidden beast` number, since 2 + 1 + 2 + 40 + 406 + 210 + 5 = 666.

It is not a de Polignac number, because 212404062105 - 2²⁵ = 212370507673 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212404062107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12888187 + ... + 12904656.

It is an arithmetic number, because the mean of its divisors is an integer number (11993672460).

Almost surely, 2^212404062105 is an apocalyptic number.

It is an amenable number.

212404062105 is a deficient number, since it is larger than the sum of its proper divisors (171393456615).

212404062105 is a wasteful number, since it uses less digits than its factorization.

212404062105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25792918 (or 25792912 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 212404062105 its reverse (501260404212), we get a palindrome (713664466317).

The spelling of 212404062105 in words is "two hundred twelve billion, four hundred four million, sixty-two thousand, one hundred five".