12101223134 has 64 divisors (see below), whose sum is σ = 24498754560. Its totient is φ = 4329400320.

The previous prime is 12101223133. The next prime is 12101223137. The reversal of 12101223134 is 43132210121.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101223133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 370727 + ... + 402045.

It is an arithmetic number, because the mean of its divisors is an integer number (382793040).

Almost surely, 2^12101223134 is an apocalyptic number.

12101223134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12101223134 is an abundant number, since it is smaller than the sum of its proper divisors (12397531426).

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

12101223134 is a wasteful number, since it uses less digits than its factorization.

12101223134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31545.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12101223134 its reverse (43132210121), we get a palindrome (55233433255).

The spelling of 12101223134 in words is "twelve billion, one hundred one million, two hundred twenty-three thousand, one hundred thirty-four".