221342020899 has 8 divisors (see below), whose sum is σ = 295125203712. Its totient is φ = 147560092680.

The previous prime is 221342020849. The next prime is 221342020901. The reversal of 221342020899 is 998020243122.

It is a Cunningham number, because it is equal to 470470²-1.

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

It is not a de Polignac number, because 221342020899 - 2⁷ = 221342020771 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 221342020899.

It is not an unprimeable number, because it can be changed into a prime (221342020849) 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, 235234 + ... + 705704.

It is an arithmetic number, because the mean of its divisors is an integer number (36890650464).

Almost surely, 2^221342020899 is an apocalyptic number.

221342020899 is a deficient number, since it is larger than the sum of its proper divisors (73783182813).

221342020899 is a wasteful number, since it uses less digits than its factorization.

221342020899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627297.

The product of its (nonzero) digits is 124416, while the sum is 42.

The spelling of 221342020899 in words is "two hundred twenty-one billion, three hundred forty-two million, twenty thousand, eight hundred ninety-nine".