220213311985 has 32 divisors (see below), whose sum is σ = 279193173120. Its totient is φ = 166281984000.

The previous prime is 220213311977. The next prime is 220213311991. The reversal of 220213311985 is 589113312022.

It is a happy number.

It is not a de Polignac number, because 220213311985 - 2³ = 220213311977 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54358210 + ... + 54362260.

It is an arithmetic number, because the mean of its divisors is an integer number (8724786660).

Almost surely, 2^220213311985 is an apocalyptic number.

It is an amenable number.

220213311985 is a deficient number, since it is larger than the sum of its proper divisors (58979861135).

220213311985 is a wasteful number, since it uses less digits than its factorization.

220213311985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6049.

The product of its (nonzero) digits is 25920, while the sum is 37.

Adding to 220213311985 its sum of digits (37), we get a palindrome (220213312022).

The spelling of 220213311985 in words is "two hundred twenty billion, two hundred thirteen million, three hundred eleven thousand, nine hundred eighty-five".