220473278213 has 8 divisors (see below), whose sum is σ = 226503588120. Its totient is φ = 214446735360.

The previous prime is 220473278209. The next prime is 220473278243. The reversal of 220473278213 is 312872374022.

It can be written as a sum of positive squares in 4 ways, for example, as 52210879009 + 168262399204 = 228497^2 + 410198^2 .

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 220473278213 - 2² = 220473278209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220473278243) 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, 822908 + ... + 1057413.

It is an arithmetic number, because the mean of its divisors is an integer number (28312948515).

Almost surely, 2^220473278213 is an apocalyptic number.

It is an amenable number.

220473278213 is a deficient number, since it is larger than the sum of its proper divisors (6030309907).

220473278213 is a wasteful number, since it uses less digits than its factorization.

220473278213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883527.

The product of its (nonzero) digits is 225792, while the sum is 41.

The spelling of 220473278213 in words is "two hundred twenty billion, four hundred seventy-three million, two hundred seventy-eight thousand, two hundred thirteen".