212134410402 has 16 divisors (see below), whose sum is σ = 426639039840. Its totient is φ = 70316433632.

The previous prime is 212134410331. The next prime is 212134410403. The reversal of 212134410402 is 204014431212.

It is not an unprimeable number, because it can be changed into a prime (212134410403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98757963 + ... + 98760110.

It is an arithmetic number, because the mean of its divisors is an integer number (26664939990).

Almost surely, 2^212134410402 is an apocalyptic number.

212134410402 is an abundant number, since it is smaller than the sum of its proper divisors (214504629438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212134410402 is a wasteful number, since it uses less digits than its factorization.

212134410402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197518257.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 212134410402 its reverse (204014431212), we get a palindrome (416148841614).

The spelling of 212134410402 in words is "two hundred twelve billion, one hundred thirty-four million, four hundred ten thousand, four hundred two".