212021365462134 has 16 divisors (see below), whose sum is σ = 424044623282160. Its totient is φ = 70673473094400.

The previous prime is 212021365462073. The next prime is 212021365462139. The reversal of 212021365462134 is 431264563120212.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212021365462139) 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, 77389639 + ... + 80082450.

It is an arithmetic number, because the mean of its divisors is an integer number (26502788955135).

Almost surely, 2^{212021365462134} is an apocalyptic number.

212021365462134 is an abundant number, since it is smaller than the sum of its proper divisors (212023257820026).

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

212021365462134 is a wasteful number, since it uses less digits than its factorization.

212021365462134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157696495.

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 212021365462134 in words is "two hundred twelve trillion, twenty-one billion, three hundred sixty-five million, four hundred sixty-two thousand, one hundred thirty-four".