221534456111111 has 8 divisors (see below), whose sum is σ = 260264256130704. Its totient is φ = 185903040093120.

The previous prime is 221534456111099. The next prime is 221534456111153. The reversal of 221534456111111 is 111111654435122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221534456111111 - 2¹⁴ = 221534456094727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221534456111161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 774596000246 + ... + 774596000531.

It is an arithmetic number, because the mean of its divisors is an integer number (32533032016338).

Almost surely, 2^{221534456111111} is an apocalyptic number.

221534456111111 is a deficient number, since it is larger than the sum of its proper divisors (38729800019593).

221534456111111 is a wasteful number, since it uses less digits than its factorization.

221534456111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549192000801.

The product of its digits is 28800, while the sum is 38.

The spelling of 221534456111111 in words is "two hundred twenty-one trillion, five hundred thirty-four billion, four hundred fifty-six million, one hundred eleven thousand, one hundred eleven".