221488814089 has 4 divisors (see below), whose sum is σ = 221489982724. Its totient is φ = 221487645456.

The previous prime is 221488814059. The next prime is 221488814101. The reversal of 221488814089 is 980418884122.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 153265986064 + 68222828025 = 391492^2 + 261195^2 .

It is a cyclic number.

It is not a de Polignac number, because 221488814089 - 2³³ = 212898879497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221488814059) 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, 227322 + ... + 703315.

It is an arithmetic number, because the mean of its divisors is an integer number (55372495681).

Almost surely, 2^221488814089 is an apocalyptic number.

It is an amenable number.

221488814089 is a deficient number, since it is larger than the sum of its proper divisors (1168635).

221488814089 is an equidigital number, since it uses as much as digits as its factorization.

221488814089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168634.

The product of its (nonzero) digits is 2359296, while the sum is 55.

The spelling of 221488814089 in words is "two hundred twenty-one billion, four hundred eighty-eight million, eight hundred fourteen thousand, eighty-nine".