123212301013212 has 12 divisors (see below), whose sum is σ = 287495369030856. Its totient is φ = 41070767004400.

The previous prime is 123212301013199. The next prime is 123212301013247. The reversal of 123212301013212 is 212310103212321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×123212301013212² (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 3 ways as a sum of consecutive naturals, for example, 5133845875539 + ... + 5133845875562.

It is an arithmetic number, because the mean of its divisors is an integer number (23957947419238).

Almost surely, 2^{123212301013212} is an apocalyptic number.

123212301013212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123212301013212 is an abundant number, since it is smaller than the sum of its proper divisors (164283068017644).

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

123212301013212 is a wasteful number, since it uses less digits than its factorization.

123212301013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10267691751108 (or 10267691751106 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 123212301013212 its reverse (212310103212321), we get a palindrome (335522404225533).

The spelling of 123212301013212 in words is "one hundred twenty-three trillion, two hundred twelve billion, three hundred one million, thirteen thousand, two hundred twelve".