212013121238 has 8 divisors (see below), whose sum is σ = 318045126432. Its totient is φ = 105998079096.

The previous prime is 212013121237. The next prime is 212013121253. The reversal of 212013121238 is 832121310212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212013121237) 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, 4209470 + ... + 4259537.

It is an arithmetic number, because the mean of its divisors is an integer number (39755640804).

Almost surely, 2^212013121238 is an apocalyptic number.

212013121238 is a deficient number, since it is larger than the sum of its proper divisors (106032005194).

212013121238 is a wasteful number, since it uses less digits than its factorization.

212013121238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8481526.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 212013121238 in words is "two hundred twelve billion, thirteen million, one hundred twenty-one thousand, two hundred thirty-eight".