12267346420 has 24 divisors (see below), whose sum is σ = 29441631744. Its totient is φ = 4205947296.

The previous prime is 12267346369. The next prime is 12267346439. The reversal of 12267346420 is 2464376221.

It is a self number, because there is not a number n which added to its sum of digits gives 12267346420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43811812 + ... + 43812091.

It is an arithmetic number, because the mean of its divisors is an integer number (1226734656).

Almost surely, 2^12267346420 is an apocalyptic number.

12267346420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12267346420 is an abundant number, since it is smaller than the sum of its proper divisors (17174285324).

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

12267346420 is a wasteful number, since it uses less digits than its factorization.

12267346420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87623919 (or 87623917 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 12267346420 in words is "twelve billion, two hundred sixty-seven million, three hundred forty-six thousand, four hundred twenty".