220288738212 has 60 divisors (see below), whose sum is σ = 579060077596. Its totient is φ = 73023871680.

The previous prime is 220288738183. The next prime is 220288738217. The reversal of 220288738212 is 212837882022.

220288738212 is a `hidden beast` number, since 220 + 288 + 73 + 82 + 1 + 2 = 666.

220288738212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 119103672996 + 101185065216 = 345114^2 + 318096^2 .

It is not an unprimeable number, because it can be changed into a prime (220288738217) 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 19 ways as a sum of consecutive naturals, for example, 1819543 + ... + 1936830.

Almost surely, 2^220288738212 is an apocalyptic number.

It is an amenable number.

220288738212 is an abundant number, since it is smaller than the sum of its proper divisors (358771339384).

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

220288738212 is a wasteful number, since it uses less digits than its factorization.

220288738212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3756570 (or 3756559 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 45.

The spelling of 220288738212 in words is "two hundred twenty billion, two hundred eighty-eight million, seven hundred thirty-eight thousand, two hundred twelve".