221988703045 has 8 divisors (see below), whose sum is σ = 266520520224. Its totient is φ = 177501578064.

The previous prime is 221988703009. The next prime is 221988703093. The reversal of 221988703045 is 540307889122.

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 221988703045 - 2¹³ = 221988694853 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 221988703045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11162119 + ... + 11181988.

It is an arithmetic number, because the mean of its divisors is an integer number (33315065028).

Almost surely, 2^221988703045 is an apocalyptic number.

It is an amenable number.

221988703045 is a deficient number, since it is larger than the sum of its proper divisors (44531817179).

221988703045 is a wasteful number, since it uses less digits than its factorization.

221988703045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22346099.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 221988703045 in words is "two hundred twenty-one billion, nine hundred eighty-eight million, seven hundred three thousand, forty-five".