221200949078 has 8 divisors (see below), whose sum is σ = 351319154472. Its totient is φ = 104094564256.

The previous prime is 221200949077. The next prime is 221200949153. The reversal of 221200949078 is 870949002122.

221200949078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221200949077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3252955100 + ... + 3252955167.

It is an arithmetic number, because the mean of its divisors is an integer number (43914894309).

Almost surely, 2^221200949078 is an apocalyptic number.

221200949078 is a deficient number, since it is larger than the sum of its proper divisors (130118205394).

221200949078 is a wasteful number, since it uses less digits than its factorization.

221200949078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6505910286.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 221200949078 in words is "two hundred twenty-one billion, two hundred million, nine hundred forty-nine thousand, seventy-eight".