221541216229999 has 8 divisors (see below), whose sum is σ = 229073352469632. Its totient is φ = 214033182827520.

The previous prime is 221541216229979. The next prime is 221541216230027. The reversal of 221541216229999 is 999922612145122.

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 221541216229999 - 2⁵ = 221541216229967 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221541216229999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221541216229969) 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, 6025690594 + ... + 6025727359.

It is an arithmetic number, because the mean of its divisors is an integer number (28634169058704).

Almost surely, 2^{221541216229999} is an apocalyptic number.

221541216229999 is a deficient number, since it is larger than the sum of its proper divisors (7532136239633).

221541216229999 is a wasteful number, since it uses less digits than its factorization.

221541216229999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12051418577.

The product of its digits is 25194240, while the sum is 64.

The spelling of 221541216229999 in words is "two hundred twenty-one trillion, five hundred forty-one billion, two hundred sixteen million, two hundred twenty-nine thousand, nine hundred ninety-nine".