12266236838 has 16 divisors (see below), whose sum is σ = 18626146560. Its totient is φ = 6057562056.

The previous prime is 12266236823. The next prime is 12266236849. The reversal of 12266236838 is 83863266221.

It is a junction number, because it is equal to n+sod(n) for n = 12266236792 and 12266236801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782231 + ... + 797757.

It is an arithmetic number, because the mean of its divisors is an integer number (1164134160).

Almost surely, 2^12266236838 is an apocalyptic number.

12266236838 is a deficient number, since it is larger than the sum of its proper divisors (6359909722).

12266236838 is a wasteful number, since it uses less digits than its factorization.

12266236838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20371.

The product of its digits is 995328, while the sum is 47.

The spelling of 12266236838 in words is "twelve billion, two hundred sixty-six million, two hundred thirty-six thousand, eight hundred thirty-eight".