221466562986199 has 4 divisors (see below), whose sum is σ = 221638109511880. Its totient is φ = 221295016460520.

The previous prime is 221466562986143. The next prime is 221466562986211. The reversal of 221466562986199 is 991689265664122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 221466562986199 - 2¹⁵ = 221466562953431 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 (221466862986199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85773260904 + ... + 85773263485.

It is an arithmetic number, because the mean of its divisors is an integer number (55409527377970).

Almost surely, 2^{221466562986199} is an apocalyptic number.

221466562986199 is a deficient number, since it is larger than the sum of its proper divisors (171546525681).

221466562986199 is a wasteful number, since it uses less digits than its factorization.

221466562986199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171546525680.

The product of its digits is 1209323520, while the sum is 76.

The spelling of 221466562986199 in words is "two hundred twenty-one trillion, four hundred sixty-six billion, five hundred sixty-two million, nine hundred eighty-six thousand, one hundred ninety-nine".