212001012134 has 8 divisors (see below), whose sum is σ = 319238878968. Its totient is φ = 105588052480.

The previous prime is 212001012109. The next prime is 212001012143. The reversal of 212001012134 is 431210100212.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206226152 + ... + 206227179.

It is an arithmetic number, because the mean of its divisors is an integer number (39904859871).

Almost surely, 2^212001012134 is an apocalyptic number.

212001012134 is a deficient number, since it is larger than the sum of its proper divisors (107237866834).

212001012134 is a wasteful number, since it uses less digits than its factorization.

212001012134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412453590.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 212001012134 its reverse (431210100212), we get a palindrome (643211112346).

The spelling of 212001012134 in words is "two hundred twelve billion, one million, twelve thousand, one hundred thirty-four".