212426343624212 has 12 divisors (see below), whose sum is σ = 371881330936500. Its totient is φ = 106174534785216.

The previous prime is 212426343624191. The next prime is 212426343624217.

212426343624212 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 2 ways, for example, as 11076089861776 + 201350253762436 = 3328076^2 + 14189794^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212426343624217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9659244353 + ... + 9659266344.

It is an arithmetic number, because the mean of its divisors is an integer number (30990110911375).

Almost surely, 2^{212426343624212} is an apocalyptic number.

It is an amenable number.

212426343624212 is a deficient number, since it is larger than the sum of its proper divisors (159454987312288).

212426343624212 is a wasteful number, since it uses less digits than its factorization.

212426343624212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19318513450 (or 19318513448 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 44.

The spelling of 212426343624212 in words is "two hundred twelve trillion, four hundred twenty-six billion, three hundred forty-three million, six hundred twenty-four thousand, two hundred twelve".