221422000645496 has 48 divisors (see below), whose sum is σ = 483268119369840. Its totient is φ = 94832340005760.

The previous prime is 221422000645493. The next prime is 221422000645577. The reversal of 221422000645496 is 694546000224122.

221422000645496 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 221422000645496.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221422000645493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 186321005 + ... + 187505628.

It is an arithmetic number, because the mean of its divisors is an integer number (10068085820205).

Almost surely, 2^{221422000645496} is an apocalyptic number.

It is an amenable number.

221422000645496 is an abundant number, since it is smaller than the sum of its proper divisors (261846118724344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221422000645496 is a wasteful number, since it uses less digits than its factorization.

221422000645496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373828164 (or 373828153 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 221422000645496 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, six hundred forty-five thousand, four hundred ninety-six".