11421421066236 has 12 divisors (see below), whose sum is σ = 26649982487912. Its totient is φ = 3807140355408.

The previous prime is 11421421066207. The next prime is 11421421066267. The reversal of 11421421066236 is 63266012412411.

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

It is a junction number, because it is equal to n+sod(n) for n = 11421421066194 and 11421421066203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 475892544415 + ... + 475892544438.

Almost surely, 2^{11421421066236} is an apocalyptic number.

It is an amenable number.

11421421066236 is an abundant number, since it is smaller than the sum of its proper divisors (15228561421676).

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

11421421066236 is a wasteful number, since it uses less digits than its factorization.

11421421066236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951785088860 (or 951785088858 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

Adding to 11421421066236 its reverse (63266012412411), we get a palindrome (74687433478647).

The spelling of 11421421066236 in words is "eleven trillion, four hundred twenty-one billion, four hundred twenty-one million, sixty-six thousand, two hundred thirty-six".