221988703046 has 16 divisors (see below), whose sum is σ = 364038824448. Its totient is φ = 100686016200.

The previous prime is 221988703009. The next prime is 221988703093. The reversal of 221988703046 is 640307889122.

It is a junction number, because it is equal to n+sod(n) for n = 221988702985 and 221988703003.

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, 10886570 + ... + 10906941.

It is an arithmetic number, because the mean of its divisors is an integer number (22752426528).

Almost surely, 2^221988703046 is an apocalyptic number.

221988703046 is a deficient number, since it is larger than the sum of its proper divisors (142050121402).

221988703046 is a wasteful number, since it uses less digits than its factorization.

221988703046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21793987.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 221988703046 in words is "two hundred twenty-one billion, nine hundred eighty-eight million, seven hundred three thousand, forty-six".