220918201 has 8 divisors (see below), whose sum is σ = 261184320. Its totient is φ = 182828688.

The previous prime is 220918177. The next prime is 220918223. The reversal of 220918201 is 102819022.

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

It is not a de Polignac number, because 220918201 - 2⁹ = 220917689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220918241) 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, 543931 + ... + 544336.

It is an arithmetic number, because the mean of its divisors is an integer number (32648040).

Almost surely, 2^220918201 is an apocalyptic number.

It is an amenable number.

220918201 is a deficient number, since it is larger than the sum of its proper divisors (40266119).

220918201 is a wasteful number, since it uses less digits than its factorization.

220918201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088303.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 220918201 is about 14863.3172946015. The cubic root of 220918201 is about 604.5197573133.

The spelling of 220918201 in words is "two hundred twenty million, nine hundred eighteen thousand, two hundred one".