12263666636221 has 64 divisors (see below), whose sum is σ = 17195182018560. Its totient is φ = 8430930224640.

The previous prime is 12263666636203. The next prime is 12263666636237.

12263666636221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12263666636221 - 2²¹ = 12263664539069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12263666636281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29470026 + ... + 29883268.

It is an arithmetic number, because the mean of its divisors is an integer number (268674719040).

Almost surely, 2^{12263666636221} is an apocalyptic number.

12263666636221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12263666636221 is a deficient number, since it is larger than the sum of its proper divisors (4931515382339).

12263666636221 is a wasteful number, since it uses less digits than its factorization.

12263666636221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414586.

The product of its digits is 6718464, while the sum is 52.

The spelling of 12263666636221 in words is "twelve trillion, two hundred sixty-three billion, six hundred sixty-six million, six hundred thirty-six thousand, two hundred twenty-one".