211212212321134 has 16 divisors (see below), whose sum is σ = 316931135229072. Its totient is φ = 105568501909248.

The previous prime is 211212212321083. The next prime is 211212212321147. The reversal of 211212212321134 is 431123212212112.

It is a super-2 number, since 2×211212212321134² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349646302 + ... + 350249854.

It is an arithmetic number, because the mean of its divisors is an integer number (19808195951817).

Almost surely, 2^{211212212321134} is an apocalyptic number.

211212212321134 is a deficient number, since it is larger than the sum of its proper divisors (105718922907938).

211212212321134 is a wasteful number, since it uses less digits than its factorization.

211212212321134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665571.

The product of its digits is 2304, while the sum is 28.

Adding to 211212212321134 its reverse (431123212212112), we get a palindrome (642335424533246).

The spelling of 211212212321134 in words is "two hundred eleven trillion, two hundred twelve billion, two hundred twelve million, three hundred twenty-one thousand, one hundred thirty-four".